- Support runtime configuration of renderer-related preferences (issue #1501).

- Persist modified user preferences including per-host zoom settings when a cache_path value is specified and persist_user_preferences is set to true via CefSettings or CefRequestContextSettings. - Avoid the need to duplicate files from chrome/ by having CefBrowserContext extend Chrome's Profile class.
2025-02-20 06:00:41 +01:00 · 2015-10-16 20:44:00 -04:00 · 2015-10-16 20:44:00 -04:00 · c32584d266
commit c32584d266
parent 156dc552b9
37 changed files with 1135 additions and 293 deletions
--- a/cef.gyp
+++ b/cef.gyp
@ -612,10 +612,11 @@
      'target_name': 'cef_locales',
      'type': 'none',
      'dependencies': [
-        '<(DEPTH)/ui/strings/ui_strings.gyp:ui_strings',
+        '<(DEPTH)/chrome/chrome_resources.gyp:platform_locale_settings',
        '<(DEPTH)/components/components_strings.gyp:components_strings',
        '<(DEPTH)/content/app/strings/content_strings.gyp:content_strings',
        '<(DEPTH)/extensions/extensions_strings.gyp:extensions_strings',
+        '<(DEPTH)/ui/strings/ui_strings.gyp:ui_strings',
        'cef_strings',
      ],
      'actions': [
@ -811,6 +812,7 @@
          'action_name': 'make_pack_strings_header',
          'variables': {
            'header_inputs': [
+              '<(SHARED_INTERMEDIATE_DIR)/chrome/grit/platform_locale_settings.h',
              '<(SHARED_INTERMEDIATE_DIR)/components/strings/grit/components_strings.h',
              '<(SHARED_INTERMEDIATE_DIR)/content/app/strings/grit/content_strings.h',
              '<(SHARED_INTERMEDIATE_DIR)/extensions/strings/grit/extensions_strings.h',
@ -854,6 +856,7 @@
        '<(DEPTH)/cef/libcef/resources/grit_stub',
        '<(DEPTH)/cef/libcef/resources/grit_stub/chrome',
        '<(grit_out_dir)',
+        '<(SHARED_INTERMEDIATE_DIR)/chrome',
        '<(SHARED_INTERMEDIATE_DIR)/components',
        '<(SHARED_INTERMEDIATE_DIR)/ui/resources',
        '<(SHARED_INTERMEDIATE_DIR)/ui/strings',
@ -957,14 +960,12 @@
        'libcef/browser/browser_message_filter.h',
        'libcef/browser/browser_message_loop.cc',
        'libcef/browser/browser_message_loop.h',
-        'libcef/browser/browser_pref_store.cc',
-        'libcef/browser/browser_pref_store.h',
-        'libcef/browser/browser_settings.cc',
-        'libcef/browser/browser_settings.h',
        'libcef/browser/browser_urlrequest_impl.cc',
        'libcef/browser/browser_urlrequest_impl.h',
        'libcef/browser/chrome_browser_process_stub.cc',
        'libcef/browser/chrome_browser_process_stub.h',
+        'libcef/browser/chrome_profile_stub.cc',
+        'libcef/browser/chrome_profile_stub.h',
        'libcef/browser/chrome_scheme_handler.cc',
        'libcef/browser/chrome_scheme_handler.h',
        'libcef/browser/content_browser_client.cc',
@ -1051,6 +1052,10 @@
        'libcef/browser/plugins/plugin_info_message_filter.h',
        'libcef/browser/plugins/plugin_service_filter.cc',
        'libcef/browser/plugins/plugin_service_filter.h',
+        'libcef/browser/prefs/browser_prefs.cc',
+        'libcef/browser/prefs/browser_prefs.h',
+        'libcef/browser/prefs/renderer_prefs.cc',
+        'libcef/browser/prefs/renderer_prefs.h',
        'libcef/browser/print_settings_impl.cc',
        'libcef/browser/print_settings_impl.h',
        'libcef/browser/printing/printing_message_filter.cc',
@ -1223,16 +1228,10 @@
        '<(DEPTH)/chrome/common/chrome_switches.cc',
        '<(DEPTH)/chrome/common/chrome_switches.h',
        # Include sources for proxy support.
-        '<(DEPTH)/base/prefs/testing_pref_store.cc',
-        '<(DEPTH)/base/prefs/testing_pref_store.h',
        '<(DEPTH)/chrome/browser/net/proxy_service_factory.cc',
        '<(DEPTH)/chrome/browser/net/proxy_service_factory.h',
        '<(DEPTH)/chrome/browser/net/utility_process_mojo_proxy_resolver_factory.cc',
        '<(DEPTH)/chrome/browser/net/utility_process_mojo_proxy_resolver_factory.h',
-        '<(DEPTH)/chrome/browser/prefs/command_line_pref_store.cc',
-        '<(DEPTH)/chrome/browser/prefs/command_line_pref_store.h',
-        '<(DEPTH)/chrome/common/pref_names.cc',
-        '<(DEPTH)/chrome/common/pref_names.h',
        '<(DEPTH)/components/data_reduction_proxy/core/common/data_reduction_proxy_switches.cc',
        '<(DEPTH)/components/data_reduction_proxy/core/common/data_reduction_proxy_switches.h',
        '<(DEPTH)/components/data_reduction_proxy/core/common/data_reduction_proxy_pref_names.cc',
@ -1357,6 +1356,32 @@
        '<(DEPTH)/chrome/browser/plugins/plugin_metadata.h',
        '<(DEPTH)/components/nacl/common/nacl_constants.cc',
        '<(DEPTH)/components/nacl/common/nacl_constants.h',
+        # Include sources for preferences support.
+        '<(DEPTH)/base/prefs/testing_pref_store.cc',
+        '<(DEPTH)/base/prefs/testing_pref_store.h',
+        '<(DEPTH)/chrome/browser/accessibility/animation_policy_prefs.cc',
+        '<(DEPTH)/chrome/browser/accessibility/animation_policy_prefs.h',
+        '<(DEPTH)/chrome/browser/character_encoding.cc',
+        '<(DEPTH)/chrome/browser/character_encoding.h',
+        '<(DEPTH)/chrome/browser/defaults.cc',
+        '<(DEPTH)/chrome/browser/defaults.h',
+        '<(DEPTH)/chrome/browser/extensions/extension_webkit_preferences.cc',
+        '<(DEPTH)/chrome/browser/extensions/extension_webkit_preferences.h',
+        '<(DEPTH)/chrome/browser/font_family_cache.cc',
+        '<(DEPTH)/chrome/browser/font_family_cache.h',
+        '<(DEPTH)/chrome/browser/prefs/command_line_pref_store.cc',
+        '<(DEPTH)/chrome/browser/prefs/command_line_pref_store.h',
+        '<(DEPTH)/chrome/browser/renderer_preferences_util.cc',
+        '<(DEPTH)/chrome/browser/renderer_preferences_util.h',
+        '<(DEPTH)/chrome/browser/ui/prefs/prefs_tab_helper.cc',
+        '<(DEPTH)/chrome/browser/ui/prefs/prefs_tab_helper.h',
+        '<(DEPTH)/chrome/browser/ui/zoom/chrome_zoom_level_prefs.cc',
+        '<(DEPTH)/chrome/browser/ui/zoom/chrome_zoom_level_prefs.h',
+        '<(DEPTH)/chrome/common/pref_font_webkit_names.h',
+        '<(DEPTH)/chrome/common/pref_names.cc',
+        '<(DEPTH)/chrome/common/pref_names.h',
+        '<(DEPTH)/chrome/common/pref_names_util.cc',
+        '<(DEPTH)/chrome/common/pref_names_util.h',
      ],
      'conditions': [
        ['OS=="win"', {
--- a/cef.gypi
+++ b/cef.gypi
@ -24,6 +24,11 @@
        # Strip symbols and create dSYM files for the Release target.
        'mac_strip_release': 1,
      }],
+      ['os_posix==1 and OS!="mac" and OS!="android"', {
+        # Disable theme support on Linux so we don't need to implement
+        # ThemeService[Factory] classes.
+        'enable_themes': 0,
+      }]
    ]
  }, 'conditions': [
    ['os_posix==1 and OS!="mac" and OS!="android"', {
--- a/include/internal/cef_types.h
+++ b/include/internal/cef_types.h
@ -218,15 +218,25 @@ typedef struct _cef_settings_t {
  ///
  // To persist session cookies (cookies without an expiry date or validity
  // interval) by default when using the global cookie manager set this value to
-  // true. Session cookies are generally intended to be transient and most Web
-  // browsers do not persist them. A |cache_path| value must also be specified
-  // to enable this feature. Also configurable using the
+  // true (1). Session cookies are generally intended to be transient and most
+  // Web browsers do not persist them. A |cache_path| value must also be
+  // specified to enable this feature. Also configurable using the
  // "persist-session-cookies" command-line switch. Can be overridden for
  // individual CefRequestContext instances via the
  // CefRequestContextSettings.persist_session_cookies value.
  ///
  int persist_session_cookies;

+  ///
+  // To persist user preferences as a JSON file in the cache path directory set
+  // this value to true (1). A |cache_path| value must also be specified
+  // to enable this feature. Also configurable using the
+  // "persist-user-preferences" command-line switch. Can be overridden for
+  // individual CefRequestContext instances via the
+  // CefRequestContextSettings.persist_user_preferences value.
+  ///
+  int persist_user_preferences;
+
  ///
  // Value that will be returned as the User-Agent HTTP header. If empty the
  // default User-Agent string will be used. Also configurable using the
@ -394,13 +404,21 @@ typedef struct _cef_request_context_settings_t {
  ///
  // To persist session cookies (cookies without an expiry date or validity
  // interval) by default when using the global cookie manager set this value to
-  // true. Session cookies are generally intended to be transient and most Web
-  // browsers do not persist them. Can be set globally using the
+  // true (1). Session cookies are generally intended to be transient and most
+  // Web browsers do not persist them. Can be set globally using the
  // CefSettings.persist_session_cookies value. This value will be ignored if
  // |cache_path| is empty or if it matches the CefSettings.cache_path value.
  ///
  int persist_session_cookies;

+  ///
+  // To persist user preferences as a JSON file in the cache path directory set
+  // this value to true (1). Can be set globally using the
+  // CefSettings.persist_user_preferences value. This value will be ignored if
+  // |cache_path| is empty or if it matches the CefSettings.cache_path value.
+  ///
+  int persist_user_preferences;
+
  ///
  // Set to true (1) to ignore errors related to invalid SSL certificates.
  // Enabling this setting can lead to potential security vulnerabilities like
--- a/include/internal/cef_types_wrappers.h
+++ b/include/internal/cef_types_wrappers.h
@ -489,6 +489,7 @@ struct CefSettingsTraits {
    cef_string_set(src->user_data_path.str, src->user_data_path.length,
        &target->user_data_path, copy);
    target->persist_session_cookies = src->persist_session_cookies;
+    target->persist_user_preferences = src->persist_user_preferences;

    cef_string_set(src->user_agent.str, src->user_agent.length,
        &target->user_agent, copy);
@ -541,6 +542,7 @@ struct CefRequestContextSettingsTraits {
    cef_string_set(src->cache_path.str, src->cache_path.length,
        &target->cache_path, copy);
    target->persist_session_cookies = src->persist_session_cookies;
+    target->persist_user_preferences = src->persist_user_preferences;
    target->ignore_certificate_errors = src->ignore_certificate_errors;
    cef_string_set(src->accept_language_list.str,
        src->accept_language_list.length, &target->accept_language_list, copy);
--- a/libcef/browser/browser_context.cc
+++ b/libcef/browser/browser_context.cc
@ -5,12 +5,15 @@
 #include "libcef/browser/browser_context.h"
 #include "libcef/browser/content_browser_client.h"
 #include "libcef/browser/extensions/extension_system.h"
+#include "libcef/browser/thread_util.h"
 #include "libcef/common/extensions/extensions_util.h"

 #include "base/logging.h"
+#include "chrome/browser/ui/zoom/chrome_zoom_level_prefs.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/user_prefs/user_prefs.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/browser/storage_partition.h"

 #ifndef NDEBUG
 base::AtomicRefCount CefBrowserContext::DebugObjCt = 0;
@ -24,16 +27,8 @@ CefBrowserContext::CefBrowserContext()
 }

 CefBrowserContext::~CefBrowserContext() {
-  if (resource_context_.get()) {
-    // Destruction of the ResourceContext will trigger destruction of all
-    // associated URLRequests.
-    content::BrowserThread::DeleteSoon(
-        content::BrowserThread::IO, FROM_HERE, resource_context_.release());
-  }
-
-  // Remove any BrowserContextKeyedServiceFactory associations.
-  BrowserContextDependencyManager::GetInstance()->DestroyBrowserContextServices(
-      this);
+  // Should be cleared in Shutdown().
+  DCHECK(!resource_context_.get());

 #ifndef NDEBUG
  base::AtomicRefCountDec(&DebugObjCt);
@ -68,6 +63,27 @@ void CefBrowserContext::Initialize() {
    extension_system_->Init();
 }

+void CefBrowserContext::Shutdown() {
+  CEF_REQUIRE_UIT();
+
+  if (resource_context_.get()) {
+    // Destruction of the ResourceContext will trigger destruction of all
+    // associated URLRequests.
+    content::BrowserThread::DeleteSoon(
+        content::BrowserThread::IO, FROM_HERE, resource_context_.release());
+  }
+
+  // Remove any BrowserContextKeyedServiceFactory associations. This must be
+  // called before the ProxyService owned by CefBrowserContextImpl is destroyed.
+  BrowserContextDependencyManager::GetInstance()->DestroyBrowserContextServices(
+      this);
+}
+
 content::ResourceContext* CefBrowserContext::GetResourceContext() {
  return resource_context_.get();
 }
+
+ChromeZoomLevelPrefs* CefBrowserContext::GetZoomLevelPrefs() {
+  return static_cast<ChromeZoomLevelPrefs*>(
+      GetStoragePartition(this, NULL)->GetZoomLevelDelegate());
+}
--- a/libcef/browser/browser_context.h
+++ b/libcef/browser/browser_context.h
@ -7,6 +7,7 @@
 #pragma once

 #include "include/cef_request_context_handler.h"
+#include "libcef/browser/chrome_profile_stub.h"
 #include "libcef/browser/resource_context.h"
 #include "libcef/browser/url_request_context_getter_impl.h"

@ -115,7 +116,7 @@ class CefExtensionSystem;
 // of this class is passed to WebContents::Create in CefBrowserHostImpl::
 // CreateInternal. Only accessed on the UI thread unless otherwise indicated.
 class CefBrowserContext
-    : public content::BrowserContext,
+    : public ChromeProfileStub,
      public base::RefCountedThreadSafe<
          CefBrowserContext, content::BrowserThread::DeleteOnUIThread> {
 public:
@ -127,6 +128,9 @@ class CefBrowserContext
  // BrowserContext methods.
  content::ResourceContext* GetResourceContext() override;

+  // Profile methods.
+  ChromeZoomLevelPrefs* GetZoomLevelPrefs() override;
+
  // Returns the settings associated with this object. Safe to call from any
  // thread.
  virtual const CefRequestContextSettings& GetSettings() const = 0;
@ -148,9 +152,6 @@ class CefBrowserContext
  // Settings for plugins and extensions.
  virtual HostContentSettingsMap* GetHostContentSettingsMap() = 0;

-  // Preferences.
-  virtual PrefService* GetPrefs() = 0;
-
  CefResourceContext* resource_context() const {
    return resource_context_.get();
  }
@ -166,6 +167,9 @@ class CefBrowserContext
 protected:
  ~CefBrowserContext() override;

+  // Must be called before the child object destructor has completed.
+  void Shutdown();
+
 private:
  // Only allow deletion via scoped_refptr().
  friend struct content::BrowserThread::DeleteOnThread<
--- a/libcef/browser/browser_context_impl.cc
+++ b/libcef/browser/browser_context_impl.cc
@ -10,6 +10,7 @@
 #include "libcef/browser/context.h"
 #include "libcef/browser/download_manager_delegate.h"
 #include "libcef/browser/permission_manager.h"
+#include "libcef/browser/prefs/browser_prefs.h"
 #include "libcef/browser/ssl_host_state_delegate.h"
 #include "libcef/browser/thread_util.h"
 #include "libcef/common/cef_switches.h"
@ -22,9 +23,12 @@
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_util.h"
 #include "base/threading/thread_restrictions.h"
+#include "chrome/browser/font_family_cache.h"
 #include "chrome/browser/net/proxy_service_factory.h"
+#include "chrome/browser/ui/zoom/chrome_zoom_level_prefs.h"
 #include "components/content_settings/core/browser/host_content_settings_map.h"
 #include "components/guest_view/browser/guest_view_manager.h"
+#include "components/ui/zoom/zoom_event_manager.h"
 #include "content/public/browser/download_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/storage_partition.h"
@ -131,6 +135,12 @@ CefBrowserContextImpl::CefBrowserContextImpl(
 }

 CefBrowserContextImpl::~CefBrowserContextImpl() {
+  Shutdown();
+
+  // The FontFamilyCache references the ProxyService so delete it before the
+  // ProxyService is deleted.
+  SetUserData(&kFontFamilyCacheKey, NULL);
+
  pref_proxy_config_tracker_->DetachFromPrefService();

  if (host_content_settings_map_.get())
@ -166,10 +176,11 @@ void CefBrowserContextImpl::Initialize() {
        CefString(&CefContext::Get()->settings().accept_language_list);
  }

-  // Initialize user preferences.
-  pref_store_ = new CefBrowserPrefStore();
-  pref_store_->SetInitializationCompleted();
-  pref_service_ = pref_store_->CreateService().Pass();
+  // Initialize preferences.
+  base::FilePath pref_path;
+  if (!cache_path_.empty() && settings_.persist_user_preferences)
+    pref_path = cache_path_.AppendASCII(browser_prefs::kUserPrefsFileName);
+  pref_service_ = browser_prefs::CreatePrefService(pref_path);

  CefBrowserContext::Initialize();

@ -239,8 +250,14 @@ base::FilePath CefBrowserContextImpl::GetPath() const {
 }

 scoped_ptr<content::ZoomLevelDelegate>
-    CefBrowserContextImpl::CreateZoomLevelDelegate(const base::FilePath&) {
-  return scoped_ptr<content::ZoomLevelDelegate>();
+    CefBrowserContextImpl::CreateZoomLevelDelegate(
+        const base::FilePath& partition_path) {
+  if (cache_path_.empty())
+    return scoped_ptr<content::ZoomLevelDelegate>();
+
+  return make_scoped_ptr(new ChromeZoomLevelPrefs(
+      GetPrefs(), cache_path_, partition_path,
+      ui_zoom::ZoomEventManager::GetForBrowserContext(this)->GetWeakPtr()));
 }

 bool CefBrowserContextImpl::IsOffTheRecord() const {
@ -313,6 +330,14 @@ content::PermissionManager* CefBrowserContextImpl::GetPermissionManager() {
  return permission_manager_.get();
 }

+PrefService* CefBrowserContextImpl::GetPrefs() {
+  return pref_service_.get();
+}
+
+const PrefService* CefBrowserContextImpl::GetPrefs() const {
+  return pref_service_.get();
+}
+
 const CefRequestContextSettings& CefBrowserContextImpl::GetSettings() const {
  return settings_;
 }
@ -380,7 +405,3 @@ HostContentSettingsMap* CefBrowserContextImpl::GetHostContentSettingsMap() {
  }
  return host_content_settings_map_.get();
 }
-
-PrefService* CefBrowserContextImpl::GetPrefs() {
-  return pref_service_.get();
-}
--- a/libcef/browser/browser_context_impl.h
+++ b/libcef/browser/browser_context_impl.h
@ -8,7 +8,6 @@

 #include "libcef/browser/browser_context.h"

-#include "libcef/browser/browser_pref_store.h"
 #include "libcef/browser/url_request_context_getter_impl.h"

 #include "base/files/file_path.h"
@ -16,11 +15,6 @@
 #include "base/memory/scoped_ptr.h"
 #include "components/proxy_config/pref_proxy_config_tracker.h"

-namespace content {
-class DownloadManagerDelegate;
-class SpeechRecognitionPreferences;
-}
-
 class CefBrowserContextProxy;
 class CefDownloadManagerDelegate;
 class CefSSLHostStateDelegate;
@ -75,6 +69,10 @@ class CefBrowserContextImpl : public CefBrowserContext {
  content::SSLHostStateDelegate* GetSSLHostStateDelegate() override;
  content::PermissionManager* GetPermissionManager() override;

+  // Profile methods.
+  PrefService* GetPrefs() override;
+  const PrefService* GetPrefs() const override;
+
  // CefBrowserContext methods.
  const CefRequestContextSettings& GetSettings() const override;
  CefRefPtr<CefRequestContextHandler> GetHandler() const override;
@ -89,7 +87,6 @@ class CefBrowserContextImpl : public CefBrowserContext {
      content::URLRequestInterceptorScopedVector request_interceptors)
      override;
  HostContentSettingsMap* GetHostContentSettingsMap() override;
-  PrefService* GetPrefs() override;

  // Guaranteed to exist once this object has been initialized.
  scoped_refptr<CefURLRequestContextGetterImpl> request_context() const {
@ -112,7 +109,6 @@ class CefBrowserContextImpl : public CefBrowserContext {
  typedef std::vector<const CefBrowserContextProxy*> ProxyList;
  ProxyList proxy_list_;

-  scoped_refptr<CefBrowserPrefStore> pref_store_;
  scoped_ptr<PrefService> pref_service_;
  scoped_ptr<PrefProxyConfigTracker> pref_proxy_config_tracker_;

--- a/libcef/browser/browser_context_proxy.cc
+++ b/libcef/browser/browser_context_proxy.cc
@ -10,6 +10,7 @@
 #include "libcef/browser/url_request_context_getter_proxy.h"

 #include "base/logging.h"
+#include "chrome/browser/font_family_cache.h"
 #include "components/guest_view/common/guest_view_constants.h"
 #include "content/browser/streams/stream_context.h"
 #include "content/public/browser/storage_partition.h"
@ -27,6 +28,12 @@ bool ShouldProxyUserData(const void* key) {
  if (key == guest_view::kGuestViewManagerKeyName)
    return true;

+  // If this value is not proxied then there will be a use-after-free while
+  // destroying the FontFamilyCache because it will try to access the
+  // ProxyService owned by CefBrowserContextImpl (which has already been freed).
+  if (key == kFontFamilyCacheKey)
+    return true;
+
  return false;
 }

@ -43,6 +50,8 @@ CefBrowserContextProxy::CefBrowserContextProxy(
 }

 CefBrowserContextProxy::~CefBrowserContextProxy() {
+  Shutdown();
+
  parent_->RemoveProxy(this);
 }

@ -142,6 +151,14 @@ content::PermissionManager* CefBrowserContextProxy::GetPermissionManager() {
  return parent_->GetPermissionManager();
 }

+PrefService* CefBrowserContextProxy::GetPrefs() {
+  return parent_->GetPrefs();
+}
+
+const PrefService* CefBrowserContextProxy::GetPrefs() const {
+  return parent_->GetPrefs();
+}
+
 const CefRequestContextSettings& CefBrowserContextProxy::GetSettings() const {
  return parent_->GetSettings();
 }
@ -173,7 +190,3 @@ net::URLRequestContextGetter*
 HostContentSettingsMap* CefBrowserContextProxy::GetHostContentSettingsMap() {
  return parent_->GetHostContentSettingsMap();
 }
-
-PrefService* CefBrowserContextProxy::GetPrefs() {
-  return parent_->GetPrefs();
-}
--- a/libcef/browser/browser_context_proxy.h
+++ b/libcef/browser/browser_context_proxy.h
@ -13,11 +13,6 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"

-namespace content {
-class DownloadManagerDelegate;
-class SpeechRecognitionPreferences;
-}
-
 class CefDownloadManagerDelegate;
 class CefURLRequestContextGetterProxy;

@ -56,6 +51,10 @@ class CefBrowserContextProxy : public CefBrowserContext {
  content::SSLHostStateDelegate* GetSSLHostStateDelegate() override;
  content::PermissionManager* GetPermissionManager() override;

+  // Profile methods.
+  PrefService* GetPrefs() override;
+  const PrefService* GetPrefs() const override;
+
  // CefBrowserContext methods.
  const CefRequestContextSettings& GetSettings() const override;
  CefRefPtr<CefRequestContextHandler> GetHandler() const override;
@ -70,7 +69,6 @@ class CefBrowserContextProxy : public CefBrowserContext {
      content::URLRequestInterceptorScopedVector request_interceptors)
      override;
  HostContentSettingsMap* GetHostContentSettingsMap() override;
-  PrefService* GetPrefs() override;

  scoped_refptr<CefBrowserContextImpl> parent() const {
    return parent_;
--- a/libcef/browser/browser_host_impl.cc
+++ b/libcef/browser/browser_host_impl.cc
@ -10,7 +10,6 @@

 #include "libcef/browser/browser_context_impl.h"
 #include "libcef/browser/browser_info.h"
-#include "libcef/browser/browser_pref_store.h"
 #include "libcef/browser/chrome_scheme_handler.h"
 #include "libcef/browser/content_browser_client.h"
 #include "libcef/browser/context.h"
@ -40,6 +39,7 @@
 #include "base/command_line.h"
 #include "chrome/browser/spellchecker/spellcheck_factory.h"
 #include "chrome/browser/spellchecker/spellcheck_service.h"
+#include "chrome/browser/ui/prefs/prefs_tab_helper.h"
 #include "content/browser/gpu/compositor_util.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/view_messages.h"
@ -3039,6 +3039,7 @@ CefBrowserHostImpl::CefBrowserHostImpl(
                           CefString(), CefString(),
                           CefFrameHostImpl::kInvalidFrameId);

+  PrefsTabHelper::CreateForWebContents(web_contents_.get());
  printing::PrintViewManager::CreateForWebContents(web_contents_.get());

  // Make sure RenderViewCreated is called at least one time.
--- a/libcef/browser/browser_pref_store.h
+++ b/libcef/browser/browser_pref_store.h
@ -1,25 +0,0 @@
-// Copyright (c) 2013 The Chromium Embedded Framework Authors. All rights
-// reserved. Use of this source code is governed by a BSD-style license that can
-// be found in the LICENSE file.
-
-#ifndef CEF_LIBCEF_BROWSER_BROWSER_PREF_STORE_H_
-#define CEF_LIBCEF_BROWSER_BROWSER_PREF_STORE_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/prefs/testing_pref_store.h"
-
-class PrefService;
-
-class CefBrowserPrefStore : public TestingPrefStore {
- public:
-  CefBrowserPrefStore();
-
-  scoped_ptr<PrefService> CreateService();
-
- protected:
-  ~CefBrowserPrefStore() override;
-
-  DISALLOW_COPY_AND_ASSIGN(CefBrowserPrefStore);
-};
-
-#endif  // CEF_LIBCEF_BROWSER_BROWSER_PREF_STORE_H_
--- a/libcef/browser/browser_settings.cc
+++ b/libcef/browser/browser_settings.cc
@ -1,128 +0,0 @@
-// Copyright (c) 2010 The Chromium Embedded Framework Authors. All rights
-// reserved. Use of this source code is governed by a BSD-style license that can
-// be found in the LICENSE file.
-
-#include "libcef/browser/browser_settings.h"
-
-#include <string>
-
-#include "include/internal/cef_types_wrappers.h"
-#include "libcef/common/cef_switches.h"
-
-#include "base/command_line.h"
-#include "content/public/common/web_preferences.h"
-
-// Set default preferences based on CEF command-line flags. Chromium command-
-// line flags should not exist for these preferences.
-void SetDefaults(content::WebPreferences& web) {
-  const base::CommandLine* command_line =
-      base::CommandLine::ForCurrentProcess();
-
-  if (command_line->HasSwitch(switches::kDefaultEncoding)) {
-    web.default_encoding =
-        command_line->GetSwitchValueASCII(switches::kDefaultEncoding);
-  }
-
-  web.javascript_can_open_windows_automatically =
-      !command_line->HasSwitch(switches::kDisableJavascriptOpenWindows);
-  web.allow_scripts_to_close_windows =
-      !command_line->HasSwitch(switches::kDisableJavascriptCloseWindows);
-  web.javascript_can_access_clipboard =
-      !command_line->HasSwitch(switches::kDisableJavascriptAccessClipboard);
-  web.dom_paste_enabled =
-      !command_line->HasSwitch(switches::kDisableJavascriptDomPaste);
-  web.caret_browsing_enabled =
-      command_line->HasSwitch(switches::kEnableCaretBrowsing);
-  web.allow_universal_access_from_file_urls =
-      command_line->HasSwitch(switches::kAllowUniversalAccessFromFileUrls);
-  web.loads_images_automatically =
-      !command_line->HasSwitch(switches::kDisableImageLoading);
-  web.shrinks_standalone_images_to_fit =
-      command_line->HasSwitch(switches::kImageShrinkStandaloneToFit);
-  web.text_areas_are_resizable =
-      !command_line->HasSwitch(switches::kDisableTextAreaResize);
-  web.tabs_to_links =
-      !command_line->HasSwitch(switches::kDisableTabToLinks);
-}
-
-// Helper macro for setting a WebPreferences variable based on the value of a
-// CefBrowserSettings variable.
-#define SET_STATE(cef_var, web_var) \
-    if (cef_var == STATE_ENABLED) \
-      web_var = true; \
-    else if (cef_var == STATE_DISABLED) \
-      web_var = false;
-
-// Use the preferences from WebContentsImpl::GetWebkitPrefs and the
-// WebPreferences constructor by default. Only override features that are
-// explicitly enabled or disabled.
-void BrowserToWebSettings(const CefBrowserSettings& cef,
-                          content::WebPreferences& web) {
-  SetDefaults(web);
-
-  if (cef.standard_font_family.length > 0) {
-    web.standard_font_family_map[content::kCommonScript] =
-        CefString(&cef.standard_font_family);
-  }
-  if (cef.fixed_font_family.length > 0) {
-    web.fixed_font_family_map[content::kCommonScript] =
-        CefString(&cef.fixed_font_family);
-  }
-  if (cef.serif_font_family.length > 0) {
-    web.serif_font_family_map[content::kCommonScript] =
-        CefString(&cef.serif_font_family);
-  }
-  if (cef.sans_serif_font_family.length > 0) {
-    web.sans_serif_font_family_map[content::kCommonScript] =
-        CefString(&cef.sans_serif_font_family);
-  }
-  if (cef.cursive_font_family.length > 0) {
-    web.cursive_font_family_map[content::kCommonScript] =
-        CefString(&cef.cursive_font_family);
-  }
-  if (cef.fantasy_font_family.length > 0) {
-    web.fantasy_font_family_map[content::kCommonScript] =
-        CefString(&cef.fantasy_font_family);
-  }
-
-  if (cef.default_font_size > 0)
-    web.default_font_size = cef.default_font_size;
-  if (cef.default_fixed_font_size > 0)
-    web.default_fixed_font_size = cef.default_fixed_font_size;
-  if (cef.minimum_font_size > 0)
-    web.minimum_font_size = cef.minimum_font_size;
-  if (cef.minimum_logical_font_size > 0)
-    web.minimum_logical_font_size = cef.minimum_logical_font_size;
-
-  if (cef.default_encoding.length > 0)
-    web.default_encoding = CefString(&cef.default_encoding);
-
-  SET_STATE(cef.remote_fonts, web.remote_fonts_enabled);
-  SET_STATE(cef.javascript, web.javascript_enabled);
-  SET_STATE(cef.javascript_open_windows,
-      web.javascript_can_open_windows_automatically);
-  SET_STATE(cef.javascript_close_windows, web.allow_scripts_to_close_windows);
-  SET_STATE(cef.javascript_access_clipboard,
-      web.javascript_can_access_clipboard);
-  SET_STATE(cef.javascript_dom_paste, web.dom_paste_enabled);
-  SET_STATE(cef.caret_browsing, web.caret_browsing_enabled);
-  SET_STATE(cef.plugins, web.plugins_enabled);
-  SET_STATE(cef.universal_access_from_file_urls,
-      web.allow_universal_access_from_file_urls);
-  SET_STATE(cef.file_access_from_file_urls,
-      web.allow_file_access_from_file_urls);
-  SET_STATE(cef.web_security, web.web_security_enabled);
-  SET_STATE(cef.image_loading, web.loads_images_automatically);
-  SET_STATE(cef.image_shrink_standalone_to_fit,
-      web.shrinks_standalone_images_to_fit);
-  SET_STATE(cef.text_area_resize, web.text_areas_are_resizable);
-  SET_STATE(cef.tab_to_links, web.tabs_to_links);
-  SET_STATE(cef.local_storage, web.local_storage_enabled);
-  SET_STATE(cef.databases, web.databases_enabled);
-  SET_STATE(cef.application_cache, web.application_cache_enabled);
-
-  // Never explicitly enable GPU-related functions in this method because the
-  // GPU blacklist is not being checked here.
-  if (cef.webgl == STATE_DISABLED)
-    web.experimental_webgl_enabled = false;
-}
--- a/libcef/browser/browser_settings.h
+++ b/libcef/browser/browser_settings.h
@ -1,18 +0,0 @@
-// Copyright (c) 2010 The Chromium Embedded Framework Authors. All rights
-// reserved. Use of this source code is governed by a BSD-style license that can
-// be found in the LICENSE file.
-
-#ifndef CEF_LIBCEF_BROWSER_BROWSER_SETTINGS_H_
-#define CEF_LIBCEF_BROWSER_BROWSER_SETTINGS_H_
-#pragma once
-
-#include "include/internal/cef_types_wrappers.h"
-
-namespace content {
-struct WebPreferences;
-}
-
-void BrowserToWebSettings(const CefBrowserSettings& cef,
-                          content::WebPreferences& web);
-
-#endif  // CEF_LIBCEF_BROWSER_BROWSER_SETTINGS_H_
--- a/libcef/browser/chrome_browser_process_stub.h
+++ b/libcef/browser/chrome_browser_process_stub.h
@ -12,8 +12,8 @@
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"

-// This file provides a stub implementation of chrome::BrowserProcess so that
-// PrintJobWorker can determine the current locale.
+// This file provides a stub implementation of Chrome's BrowserProcess object
+// for use as an interop layer between CEF and files that live in chrome/.

 class BackgroundModeManager {
 public:
--- a/libcef/browser/chrome_profile_stub.cc
+++ b/libcef/browser/chrome_profile_stub.cc
@ -0,0 +1,222 @@
+// Copyright (c) 2015 The Chromium Embedded Framework Authors.
+// Portions copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "libcef/browser/chrome_profile_stub.h"
+
+// Profile implementation.
+// Based on chrome/browser/profiles/profile.cc.
+
+Profile::Profile() {
+}
+
+Profile::~Profile() {
+}
+
+// static
+Profile* Profile::FromBrowserContext(content::BrowserContext* browser_context) {
+  // This is safe; this is the only implementation of the browser context.
+  return static_cast<Profile*>(browser_context);
+}
+
+// static
+Profile* Profile::FromWebUI(content::WebUI* web_ui) {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+TestingProfile* Profile::AsTestingProfile() {
+  return NULL;
+}
+
+ChromeZoomLevelPrefs* Profile::GetZoomLevelPrefs() {
+  return NULL;
+}
+
+// static
+void Profile::RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
+  NOTIMPLEMENTED();
+}
+
+std::string Profile::GetDebugName() {
+  NOTIMPLEMENTED();
+  return std::string();
+}
+
+bool Profile::IsGuestSession() const {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+bool Profile::IsSystemProfile() const {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+bool Profile::IsNewProfile() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+bool Profile::IsSyncAllowed() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+void Profile::MaybeSendDestroyedNotification() {
+  NOTIMPLEMENTED();
+}
+
+bool ProfileCompare::operator()(Profile* a, Profile* b) const {
+  DCHECK(a && b);
+  if (a->IsSameProfile(b))
+    return false;
+  return a->GetOriginalProfile() < b->GetOriginalProfile();
+}
+
+double Profile::GetDefaultZoomLevelForProfile() {
+  NOTIMPLEMENTED();
+  return 0.0;
+}
+
+
+// ChromeProfileStub implementation.
+
+ChromeProfileStub::ChromeProfileStub(){
+}
+
+ChromeProfileStub::~ChromeProfileStub() {
+}
+
+scoped_refptr<base::SequencedTaskRunner> ChromeProfileStub::GetIOTaskRunner() {
+  NOTIMPLEMENTED();
+  return scoped_refptr<base::SequencedTaskRunner>();
+}
+
+std::string ChromeProfileStub::GetProfileUserName() const {
+  NOTIMPLEMENTED();
+  return std::string();
+}
+
+Profile::ProfileType ChromeProfileStub::GetProfileType() const {
+  NOTIMPLEMENTED();
+  return REGULAR_PROFILE;
+}
+
+Profile* ChromeProfileStub::GetOffTheRecordProfile() {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+void ChromeProfileStub::DestroyOffTheRecordProfile() {
+  NOTIMPLEMENTED();
+}
+
+bool ChromeProfileStub::HasOffTheRecordProfile() {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+Profile* ChromeProfileStub::GetOriginalProfile() {
+  return this;
+}
+
+bool ChromeProfileStub::IsSupervised() const  {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+bool ChromeProfileStub::IsChild() const  {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+bool ChromeProfileStub::IsLegacySupervised() const  {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+ExtensionSpecialStoragePolicy*
+    ChromeProfileStub::GetExtensionSpecialStoragePolicy()  {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+PrefService* ChromeProfileStub::GetOffTheRecordPrefs()  {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+net::URLRequestContextGetter*
+    ChromeProfileStub::GetRequestContextForExtensions()  {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+net::SSLConfigService* ChromeProfileStub::GetSSLConfigService()  {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+bool ChromeProfileStub::IsSameProfile(Profile* profile)  {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+base::Time ChromeProfileStub::GetStartTime() const  {
+  NOTIMPLEMENTED();
+  return base::Time();
+}
+
+base::FilePath ChromeProfileStub::last_selected_directory()  {
+  NOTIMPLEMENTED();
+  return base::FilePath();
+}
+
+void ChromeProfileStub::set_last_selected_directory(
+    const base::FilePath& path)  {
+  NOTIMPLEMENTED();
+}
+
+PrefProxyConfigTracker* ChromeProfileStub::GetProxyConfigTracker()  {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+chrome_browser_net::Predictor* ChromeProfileStub::GetNetworkPredictor()  {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+DevToolsNetworkControllerHandle*
+    ChromeProfileStub::GetDevToolsNetworkControllerHandle()  {
+  NOTIMPLEMENTED();
+  return NULL;
+}
+
+void ChromeProfileStub::ClearNetworkingHistorySince(
+    base::Time time,
+    const base::Closure& completion)  {
+  NOTIMPLEMENTED();
+}
+
+GURL ChromeProfileStub::GetHomePage()  {
+  NOTIMPLEMENTED();
+  return GURL();
+}
+
+bool ChromeProfileStub::WasCreatedByVersionOrLater(
+    const std::string& version)  {
+  NOTIMPLEMENTED();
+  return false;
+}
+
+void ChromeProfileStub::SetExitType(ExitType exit_type) {
+  NOTIMPLEMENTED();
+}
+
+Profile::ExitType ChromeProfileStub::GetLastSessionExitType() {
+  NOTIMPLEMENTED();
+  return EXIT_NORMAL;
+}
--- a/libcef/browser/chrome_profile_stub.h
+++ b/libcef/browser/chrome_profile_stub.h
@ -0,0 +1,57 @@
+// Copyright (c) 2015 The Chromium Embedded Framework Authors.
+// Portions copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This class gathers state related to a single user profile.
+
+#ifndef CEF_LIBCEF_BROWSER_CHROME_PROFILE_STUB_H_
+#define CEF_LIBCEF_BROWSER_CHROME_PROFILE_STUB_H_
+
+#include "chrome/browser/profiles/profile.h"
+
+// This file provides a stub implementation of Chrome's Profile object for use
+// as an interop layer between CEF and files that live in chrome/.
+
+class ChromeProfileStub : public Profile {
+ public:
+  ChromeProfileStub();
+  ~ChromeProfileStub() override;
+
+ protected:
+  // Profile methods.
+  scoped_refptr<base::SequencedTaskRunner> GetIOTaskRunner() override;
+  std::string GetProfileUserName() const override;
+  ProfileType GetProfileType() const override;
+  Profile* GetOffTheRecordProfile() override;
+  void DestroyOffTheRecordProfile() override;
+  bool HasOffTheRecordProfile() override;
+  Profile* GetOriginalProfile() override;
+  bool IsSupervised() const override;
+  bool IsChild() const override;
+  bool IsLegacySupervised() const override;
+  ExtensionSpecialStoragePolicy*
+      GetExtensionSpecialStoragePolicy() override;
+  PrefService* GetOffTheRecordPrefs() override;
+  net::URLRequestContextGetter* GetRequestContextForExtensions() override;
+  net::SSLConfigService* GetSSLConfigService() override;
+  bool IsSameProfile(Profile* profile) override;
+  base::Time GetStartTime() const override;
+  base::FilePath last_selected_directory() override;
+  void set_last_selected_directory(const base::FilePath& path) override;
+  PrefProxyConfigTracker* GetProxyConfigTracker() override;
+  chrome_browser_net::Predictor* GetNetworkPredictor() override;
+  DevToolsNetworkControllerHandle*
+      GetDevToolsNetworkControllerHandle() override;
+  void ClearNetworkingHistorySince(base::Time time,
+                                   const base::Closure& completion) override;
+  GURL GetHomePage() override;
+  bool WasCreatedByVersionOrLater(const std::string& version) override;
+  void SetExitType(ExitType exit_type) override;
+  ExitType GetLastSessionExitType() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ChromeProfileStub);
+};
+
+#endif  // CEF_LIBCEF_BROWSER_CHROME_PROFILE_STUB_H_
--- a/libcef/browser/content_browser_client.cc
+++ b/libcef/browser/content_browser_client.cc
@ -10,7 +10,6 @@
 #include "libcef/browser/browser_host_impl.h"
 #include "libcef/browser/browser_main.h"
 #include "libcef/browser/browser_message_filter.h"
-#include "libcef/browser/browser_settings.h"
 #include "libcef/browser/chrome_scheme_handler.h"
 #include "libcef/browser/context.h"
 #include "libcef/browser/devtools_delegate.h"
@ -20,6 +19,7 @@
 #include "libcef/browser/pepper/browser_pepper_host_factory.h"
 #include "libcef/browser/plugins/plugin_info_message_filter.h"
 #include "libcef/browser/plugins/plugin_service_filter.h"
+#include "libcef/browser/prefs/renderer_prefs.h"
 #include "libcef/browser/printing/printing_message_filter.h"
 #include "libcef/browser/resource_dispatcher_host_delegate.h"
 #include "libcef/browser/speech_recognition_manager_delegate.h"
@ -1004,24 +1004,10 @@ void CefContentBrowserClient::ResourceDispatcherHostCreated() {
 void CefContentBrowserClient::OverrideWebkitPrefs(
    content::RenderViewHost* rvh,
    content::WebPreferences* prefs) {
-  const base::CommandLine* command_line =
-      base::CommandLine::ForCurrentProcess();
+  renderer_prefs::PopulateWebPreferences(rvh, *prefs);

-  CefRefPtr<CefBrowserHostImpl> browser =
-      extensions::GetOwnerBrowserForHost(rvh);
-  if (browser.get()) {
-    // Populate WebPreferences based on CefBrowserSettings.
-    BrowserToWebSettings(browser->settings(), *prefs);
-  }
-
-  prefs->base_background_color = GetBaseBackgroundColor(browser);
  if (rvh->GetView())
    rvh->GetView()->SetBackgroundColor(prefs->base_background_color);
-
-  prefs->asynchronous_spell_checking_enabled = true;
-  // Auto-correct does not work in combination with the unified text checker.
-  prefs->unified_textchecker_enabled =
-      !command_line->HasSwitch(switches::kEnableSpellingAutoCorrect);
 }

 void CefContentBrowserClient::BrowserURLHandlerCreated(
@ -1161,27 +1147,3 @@ CefContentBrowserClient::browser_context() const {
 CefDevToolsDelegate* CefContentBrowserClient::devtools_delegate() const {
  return browser_main_parts_->devtools_delegate();
 }
-
-// static
-SkColor CefContentBrowserClient::GetBaseBackgroundColor(
-    CefRefPtr<CefBrowserHostImpl> browser) {
-  if (browser.get()) {
-    const CefBrowserSettings& browser_settings = browser->settings();
-    if (CefColorGetA(browser_settings.background_color) > 0) {
-      return SkColorSetRGB(
-          CefColorGetR(browser_settings.background_color),
-          CefColorGetG(browser_settings.background_color),
-          CefColorGetB(browser_settings.background_color));
-    }
-  }
-
-  const CefSettings& settings = CefContext::Get()->settings();
-  if (CefColorGetA(settings.background_color) > 0) {
-    return SkColorSetRGB(
-        CefColorGetR(settings.background_color),
-        CefColorGetG(settings.background_color),
-        CefColorGetB(settings.background_color));
-  }
-
-  return SK_ColorWHITE;
-}
--- a/libcef/browser/content_browser_client.h
+++ b/libcef/browser/content_browser_client.h
@ -170,8 +170,6 @@ class CefContentBrowserClient : public content::ContentBrowserClient {
  CefDevToolsDelegate* devtools_delegate() const;

 private:
-  static SkColor GetBaseBackgroundColor(CefRefPtr<CefBrowserHostImpl> browser);
-
  CefBrowserMainParts* browser_main_parts_;

  scoped_ptr<content::PluginServiceFilter> plugin_service_filter_;
--- a/libcef/browser/context.cc
+++ b/libcef/browser/context.cc
@ -360,6 +360,9 @@ void CefContext::PopulateRequestContextSettings(
  settings->persist_session_cookies =
      settings_.persist_session_cookies ||
      command_line->HasSwitch(switches::kPersistSessionCookies);
+  settings->persist_user_preferences =
+      settings_.persist_user_preferences ||
+      command_line->HasSwitch(switches::kPersistUserPreferences);
  settings->ignore_certificate_errors =
      settings_.ignore_certificate_errors ||
      command_line->HasSwitch(switches::kIgnoreCertificateErrors);
--- a/libcef/browser/extensions/browser_context_keyed_service_factories.cc
+++ b/libcef/browser/extensions/browser_context_keyed_service_factories.cc
@ -6,12 +6,14 @@

 #include "libcef/browser/extensions/api/streams_private/streams_private_api.h"

+#include "chrome/browser/ui/prefs/prefs_tab_helper.h"
 #include "extensions/browser/renderer_startup_helper.h"

 namespace extensions {
 namespace cef {

 void EnsureBrowserContextKeyedServiceFactoriesBuilt() {
+  PrefsTabHelper::GetServiceInstance();
  RendererStartupHelperFactory::GetInstance();
  StreamsPrivateAPI::GetFactoryInstance();
 }
--- a/libcef/browser/extensions/extensions_api_client.cc
+++ b/libcef/browser/extensions/extensions_api_client.cc
@ -11,6 +11,7 @@
 #include "libcef/browser/extensions/pdf_web_contents_helper_client.h"
 #include "libcef/browser/printing/print_view_manager.h"

+#include "chrome/browser/ui/prefs/prefs_tab_helper.h"
 #include "components/pdf/browser/pdf_web_contents_helper.h"

 namespace extensions {
@ -33,6 +34,7 @@ CefExtensionsAPIClient::CreateMimeHandlerViewGuestDelegate(

 void CefExtensionsAPIClient::AttachWebContentsHelpers(
    content::WebContents* web_contents) const {
+  PrefsTabHelper::CreateForWebContents(web_contents);
  printing::PrintViewManager::CreateForWebContents(web_contents);
  pdf::PDFWebContentsHelper::CreateForWebContentsWithClient(
      web_contents,
--- a/libcef/browser/prefs/browser_prefs.cc
+++ b/libcef/browser/prefs/browser_prefs.cc
@ -2,15 +2,20 @@
 // reserved. Use of this source code is governed by a BSD-style license that can
 // be found in the LICENSE file.

-#include "libcef/browser/browser_pref_store.h"
+#include "libcef/browser/prefs/browser_prefs.h"

 #include "libcef/browser/media_capture_devices_dispatcher.h"
+#include "libcef/browser/prefs/renderer_prefs.h"
 #include "libcef/common/cef_switches.h"

 #include "base/command_line.h"
+#include "base/files/file_path.h"
+#include "base/prefs/json_pref_store.h"
+#include "base/prefs/pref_filter.h"
+#include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "base/prefs/pref_service_factory.h"
-#include "base/prefs/pref_registry_simple.h"
+#include "base/prefs/testing_pref_store.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/prefs/command_line_pref_store.h"
@ -20,10 +25,13 @@
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/proxy_config/pref_proxy_config_tracker_impl.h"
 #include "components/proxy_config/proxy_config_dictionary.h"
+#include "content/public/browser/browser_thread.h"
 #include "extensions/browser/extension_prefs.h"
 #include "grit/cef_strings.h"
 #include "ui/base/l10n/l10n_util.h"

+namespace browser_prefs {
+
 namespace {

 // A helper function for registering localized values.
@ -73,31 +81,56 @@ void RegisterLocalizedValue(PrefRegistrySimple* registry,

 }  // namespace

-CefBrowserPrefStore::CefBrowserPrefStore() {
-}
+const char kUserPrefsFileName[] = "UserPrefs.json";

-scoped_ptr<PrefService> CefBrowserPrefStore::CreateService() {
+scoped_ptr<PrefService> CreatePrefService(const base::FilePath& pref_path) {
  const base::CommandLine* command_line =
      base::CommandLine::ForCurrentProcess();

  base::PrefServiceFactory factory;
-  factory.set_command_line_prefs(
-      new CommandLinePrefStore(command_line));
-  factory.set_user_prefs(this);

+  // Used to store command-line preferences, most of which will be evaluated in
+  // the CommandLinePrefStore constructor. Preferences set in this manner cannot
+  // be overridden by the user.
+  scoped_refptr<CommandLinePrefStore> command_line_pref_store(
+      new CommandLinePrefStore(command_line));
+  renderer_prefs::SetCommandLinePrefDefaults(command_line_pref_store.get());
+  factory.set_command_line_prefs(command_line_pref_store);
+
+  // Used to store user preferences.
+  scoped_refptr<PersistentPrefStore> user_pref_store;
+  if (!pref_path.empty()) {
+    // Store preferences on disk.
+    scoped_refptr<base::SequencedTaskRunner> task_runner =
+        JsonPrefStore::GetTaskRunnerForFile(
+            pref_path,
+            content::BrowserThread::GetBlockingPool());
+    scoped_refptr<JsonPrefStore> json_pref_store =
+        new JsonPrefStore(pref_path, task_runner, scoped_ptr<PrefFilter>());
+    factory.set_user_prefs(json_pref_store.get());
+  } else {
+    // Store preferences in memory.
+    scoped_refptr<TestingPrefStore> testing_pref_store = new TestingPrefStore();
+    testing_pref_store->SetInitializationCompleted();
+    factory.set_user_prefs(testing_pref_store.get());
+  }
+
+  // Registry that will be populated with all known preferences. Preferences
+  // are registered with default values that may be changed via a *PrefStore.
  scoped_refptr<user_prefs::PrefRegistrySyncable> registry(
      new user_prefs::PrefRegistrySyncable());

-  // Default settings.
+  // Default preferences.
  CefMediaCaptureDevicesDispatcher::RegisterPrefs(registry.get());
  PrefProxyConfigTrackerImpl::RegisterPrefs(registry.get());
  extensions::ExtensionPrefs::RegisterProfilePrefs(registry.get());
  HostContentSettingsMap::RegisterProfilePrefs(registry.get());
+  renderer_prefs::RegisterProfilePrefs(registry.get());

-  // Print settings.
+  // Print preferences.
  registry->RegisterBooleanPref(prefs::kPrintingEnabled, true);

-  // Spell checking settings.
+  // Spell checking preferences.
  // Based on SpellcheckServiceFactory::RegisterProfilePrefs.
  registry->RegisterListPref(prefs::kSpellCheckDictionaries,
                             new base::ListValue);
@ -119,18 +152,18 @@ scoped_ptr<PrefService> CefBrowserPrefStore::CreateService() {
  registry->RegisterBooleanPref(prefs::kEnableAutoSpellCorrect,
      command_line->HasSwitch(switches::kEnableSpellingAutoCorrect));

-  // Pepper flash settings.
+  // Pepper flash preferences.
  // Based on DeviceIDFetcher::RegisterProfilePrefs.
  registry->RegisterBooleanPref(prefs::kEnableDRM, false);
  registry->RegisterStringPref(prefs::kDRMSalt, "");

-  // Plugin settings.
+  // Plugin preferences.
  // Based on chrome::RegisterBrowserUserPrefs.
  registry->RegisterBooleanPref(prefs::kPluginsAllowOutdated, false);
  registry->RegisterBooleanPref(prefs::kPluginsAlwaysAuthorize, false);

  if (command_line->HasSwitch(switches::kEnablePreferenceTesting)) {
-    // Register preferences used with unit tests.
+    // Preferences used with unit tests.
    registry->RegisterBooleanPref("test.bool", true);
    registry->RegisterIntegerPref("test.int", 2);
    registry->RegisterDoublePref("test.double", 5.0);
@ -139,8 +172,8 @@ scoped_ptr<PrefService> CefBrowserPrefStore::CreateService() {
    registry->RegisterDictionaryPref("test.dict");
  }

+  // Build the PrefService that manages the PrefRegistry and PrefStores.
  return factory.Create(registry.get());
 }

-CefBrowserPrefStore::~CefBrowserPrefStore() {
-}
+}  // namespace browser_prefs
--- a/libcef/browser/prefs/browser_prefs.h
+++ b/libcef/browser/prefs/browser_prefs.h
@ -0,0 +1,26 @@
+// Copyright (c) 2013 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that can
+// be found in the LICENSE file.
+
+#ifndef CEF_LIBCEF_BROWSER_PREFS_BROWSER_PREFS_H_
+#define CEF_LIBCEF_BROWSER_PREFS_BROWSER_PREFS_H_
+
+#include "base/memory/scoped_ptr.h"
+
+class PrefService;
+
+namespace base {
+class FilePath;
+}
+
+namespace browser_prefs {
+
+// Name for the user prefs JSON file.
+extern const char kUserPrefsFileName[];
+
+// Create the PrefService used to manage pref registration and storage.
+scoped_ptr<PrefService> CreatePrefService(const base::FilePath& pref_path);
+
+}  // namespace browser_prefs
+
+#endif  // CEF_LIBCEF_BROWSER_PREFS_BROWSER_PREFS_H_
--- a/libcef/browser/prefs/renderer_prefs.cc
+++ b/libcef/browser/prefs/renderer_prefs.cc
@ -0,0 +1,393 @@
+// Copyright (c) 2010 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that can
+// be found in the LICENSE file.
+
+#include "libcef/browser/prefs/renderer_prefs.h"
+
+#include <string>
+
+#include "libcef/browser/browser_context.h"
+#include "libcef/browser/context.h"
+#include "libcef/browser/extensions/browser_extensions_util.h"
+#include "libcef/common/cef_switches.h"
+#include "libcef/common/extensions/extensions_util.h"
+
+#include "base/command_line.h"
+#include "base/prefs/pref_service.h"
+#include "base/prefs/pref_store.h"
+#include "base/values.h"
+#include "chrome/browser/accessibility/animation_policy_prefs.h"
+#include "chrome/browser/character_encoding.h"
+#include "chrome/browser/defaults.h"
+#include "chrome/browser/extensions/extension_webkit_preferences.h"
+#include "chrome/browser/font_family_cache.h"
+#include "chrome/browser/prefs/command_line_pref_store.h"
+#include "chrome/browser/ui/prefs/prefs_tab_helper.h"
+#include "chrome/common/chrome_switches.h"
+#include "chrome/common/pref_names.h"
+#include "components/pref_registry/pref_registry_syncable.h"
+#include "content/public/browser/render_process_host.h"
+#include "content/public/browser/render_view_host.h"
+#include "content/public/browser/site_instance.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/common/web_preferences.h"
+#include "extensions/browser/extension_registry.h"
+#include "extensions/browser/view_type_utils.h"
+#include "extensions/common/constants.h"
+
+namespace renderer_prefs {
+
+namespace {
+
+// Set default values based on CEF command-line flags for preferences that are
+// not available via the PrefService. Chromium command-line flags should not
+// exist for these preferences.
+void SetDefaultPrefs(content::WebPreferences& web) {
+  const base::CommandLine* command_line =
+      base::CommandLine::ForCurrentProcess();
+
+  web.allow_scripts_to_close_windows =
+      !command_line->HasSwitch(switches::kDisableJavascriptCloseWindows);
+  web.javascript_can_access_clipboard =
+      !command_line->HasSwitch(switches::kDisableJavascriptAccessClipboard);
+  web.caret_browsing_enabled =
+      command_line->HasSwitch(switches::kEnableCaretBrowsing);
+  web.allow_universal_access_from_file_urls =
+      command_line->HasSwitch(switches::kAllowUniversalAccessFromFileUrls);
+    web.shrinks_standalone_images_to_fit =
+      command_line->HasSwitch(switches::kImageShrinkStandaloneToFit);
+  web.text_areas_are_resizable =
+      !command_line->HasSwitch(switches::kDisableTextAreaResize);
+
+  web.asynchronous_spell_checking_enabled = true;
+  // Auto-correct does not work in combination with the unified text checker.
+  web.unified_textchecker_enabled =
+      !command_line->HasSwitch(switches::kEnableSpellingAutoCorrect);
+}
+
+// Chrome preferences.
+// Should match ChromeContentBrowserClient::OverrideWebkitPrefs.
+void SetChromePrefs(CefBrowserContext* profile,
+                    content::WebPreferences& web) {
+  PrefService* prefs = profile->GetPrefs();
+
+  // Fill per-script font preferences.
+  FontFamilyCache::FillFontFamilyMap(profile,
+                                     prefs::kWebKitStandardFontFamilyMap,
+                                     &web.standard_font_family_map);
+  FontFamilyCache::FillFontFamilyMap(profile,
+                                     prefs::kWebKitFixedFontFamilyMap,
+                                     &web.fixed_font_family_map);
+  FontFamilyCache::FillFontFamilyMap(profile,
+                                     prefs::kWebKitSerifFontFamilyMap,
+                                     &web.serif_font_family_map);
+  FontFamilyCache::FillFontFamilyMap(profile,
+                                     prefs::kWebKitSansSerifFontFamilyMap,
+                                     &web.sans_serif_font_family_map);
+  FontFamilyCache::FillFontFamilyMap(profile,
+                                     prefs::kWebKitCursiveFontFamilyMap,
+                                     &web.cursive_font_family_map);
+  FontFamilyCache::FillFontFamilyMap(profile,
+                                     prefs::kWebKitFantasyFontFamilyMap,
+                                     &web.fantasy_font_family_map);
+  FontFamilyCache::FillFontFamilyMap(profile,
+                                     prefs::kWebKitPictographFontFamilyMap,
+                                     &web.pictograph_font_family_map);
+
+  web.default_font_size =
+      prefs->GetInteger(prefs::kWebKitDefaultFontSize);
+  web.default_fixed_font_size =
+      prefs->GetInteger(prefs::kWebKitDefaultFixedFontSize);
+  web.minimum_font_size =
+      prefs->GetInteger(prefs::kWebKitMinimumFontSize);
+  web.minimum_logical_font_size =
+      prefs->GetInteger(prefs::kWebKitMinimumLogicalFontSize);
+
+  web.default_encoding = prefs->GetString(prefs::kDefaultCharset);
+
+  web.javascript_can_open_windows_automatically =
+      prefs->GetBoolean(prefs::kWebKitJavascriptCanOpenWindowsAutomatically);
+  web.dom_paste_enabled =
+      prefs->GetBoolean(prefs::kWebKitDomPasteEnabled);
+  web.tabs_to_links = prefs->GetBoolean(prefs::kWebkitTabsToLinks);
+
+  if (!prefs->GetBoolean(prefs::kWebKitJavascriptEnabled))
+    web.javascript_enabled = false;
+  if (!prefs->GetBoolean(prefs::kWebKitWebSecurityEnabled))
+    web.web_security_enabled = false;
+  if (!prefs->GetBoolean(prefs::kWebKitPluginsEnabled))
+    web.plugins_enabled = false;
+  web.loads_images_automatically =
+      prefs->GetBoolean(prefs::kWebKitLoadsImagesAutomatically);
+
+  if (prefs->GetBoolean(prefs::kDisable3DAPIs))
+    web.experimental_webgl_enabled = false;
+
+  web.allow_displaying_insecure_content =
+      prefs->GetBoolean(prefs::kWebKitAllowDisplayingInsecureContent);
+  web.allow_running_insecure_content =
+      prefs->GetBoolean(prefs::kWebKitAllowRunningInsecureContent);
+
+  web.password_echo_enabled = browser_defaults::kPasswordEchoEnabled;
+
+  web.uses_universal_detector =
+      prefs->GetBoolean(prefs::kWebKitUsesUniversalDetector);
+  web.text_areas_are_resizable =
+      prefs->GetBoolean(prefs::kWebKitTextAreasAreResizable);
+  web.hyperlink_auditing_enabled =
+      prefs->GetBoolean(prefs::kEnableHyperlinkAuditing);
+
+  if (extensions::ExtensionsEnabled()) {
+    std::string image_animation_policy =
+        prefs->GetString(prefs::kAnimationPolicy);
+    if (image_animation_policy == kAnimationPolicyOnce)
+      web.animation_policy =
+          content::IMAGE_ANIMATION_POLICY_ANIMATION_ONCE;
+    else if (image_animation_policy == kAnimationPolicyNone)
+      web.animation_policy = content::IMAGE_ANIMATION_POLICY_NO_ANIMATION;
+    else
+      web.animation_policy = content::IMAGE_ANIMATION_POLICY_ALLOWED;
+  }
+
+  // Make sure we will set the default_encoding with canonical encoding name.
+  web.default_encoding =
+      CharacterEncoding::GetCanonicalEncodingNameByAliasName(
+          web.default_encoding);
+  if (web.default_encoding.empty()) {
+    prefs->ClearPref(prefs::kDefaultCharset);
+    web.default_encoding = prefs->GetString(prefs::kDefaultCharset);
+  }
+  DCHECK(!web.default_encoding.empty());
+
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnablePotentiallyAnnoyingSecurityFeatures)) {
+    web.disable_reading_from_canvas = true;
+    web.strict_mixed_content_checking = true;
+    web.strict_powerful_feature_restrictions = true;
+  }
+}
+
+// Extension preferences.
+// Should match ChromeContentBrowserClientExtensionsPart::OverrideWebkitPrefs.
+void SetExtensionPrefs(content::RenderViewHost* rvh,
+                       content::WebPreferences& web) {
+  if (!extensions::ExtensionsEnabled())
+    return;
+
+  const extensions::ExtensionRegistry* registry =
+      extensions::ExtensionRegistry::Get(
+          rvh->GetProcess()->GetBrowserContext());
+  if (!registry)
+    return;
+
+  // Note: it's not possible for kExtensionsScheme to change during the lifetime
+  // of the process.
+  //
+  // Ensure that we are only granting extension preferences to URLs with the
+  // correct scheme. Without this check, chrome-guest:// schemes used by webview
+  // tags as well as hosts that happen to match the id of an installed extension
+  // would get the wrong preferences.
+  const GURL& site_url = rvh->GetSiteInstance()->GetSiteURL();
+  if (!site_url.SchemeIs(extensions::kExtensionScheme))
+    return;
+
+  content::WebContents* web_contents =
+      content::WebContents::FromRenderViewHost(rvh);
+  extensions::ViewType view_type = extensions::GetViewType(web_contents);
+  const extensions::Extension* extension =
+      registry->enabled_extensions().GetByID(site_url.host());
+  extension_webkit_preferences::SetPreferences(extension, view_type, &web);
+}
+
+// Helper macro for setting a WebPreferences variable based on the value of a
+// CefBrowserSettings variable.
+#define SET_STATE(cef_var, web_var) \
+    if (cef_var == STATE_ENABLED) \
+      web_var = true; \
+    else if (cef_var == STATE_DISABLED) \
+      web_var = false;
+
+// Set preferences based on CefBrowserSettings.
+void SetCefPrefs(const CefBrowserSettings& cef,
+                 content::WebPreferences& web) {
+  if (cef.standard_font_family.length > 0) {
+    web.standard_font_family_map[content::kCommonScript] =
+        CefString(&cef.standard_font_family);
+  }
+  if (cef.fixed_font_family.length > 0) {
+    web.fixed_font_family_map[content::kCommonScript] =
+        CefString(&cef.fixed_font_family);
+  }
+  if (cef.serif_font_family.length > 0) {
+    web.serif_font_family_map[content::kCommonScript] =
+        CefString(&cef.serif_font_family);
+  }
+  if (cef.sans_serif_font_family.length > 0) {
+    web.sans_serif_font_family_map[content::kCommonScript] =
+        CefString(&cef.sans_serif_font_family);
+  }
+  if (cef.cursive_font_family.length > 0) {
+    web.cursive_font_family_map[content::kCommonScript] =
+        CefString(&cef.cursive_font_family);
+  }
+  if (cef.fantasy_font_family.length > 0) {
+    web.fantasy_font_family_map[content::kCommonScript] =
+        CefString(&cef.fantasy_font_family);
+  }
+
+  if (cef.default_font_size > 0)
+    web.default_font_size = cef.default_font_size;
+  if (cef.default_fixed_font_size > 0)
+    web.default_fixed_font_size = cef.default_fixed_font_size;
+  if (cef.minimum_font_size > 0)
+    web.minimum_font_size = cef.minimum_font_size;
+  if (cef.minimum_logical_font_size > 0)
+    web.minimum_logical_font_size = cef.minimum_logical_font_size;
+
+  if (cef.default_encoding.length > 0)
+    web.default_encoding = CefString(&cef.default_encoding);
+
+  SET_STATE(cef.remote_fonts, web.remote_fonts_enabled);
+  SET_STATE(cef.javascript, web.javascript_enabled);
+  SET_STATE(cef.javascript_open_windows,
+      web.javascript_can_open_windows_automatically);
+  SET_STATE(cef.javascript_close_windows, web.allow_scripts_to_close_windows);
+  SET_STATE(cef.javascript_access_clipboard,
+      web.javascript_can_access_clipboard);
+  SET_STATE(cef.javascript_dom_paste, web.dom_paste_enabled);
+  SET_STATE(cef.caret_browsing, web.caret_browsing_enabled);
+  SET_STATE(cef.plugins, web.plugins_enabled);
+  SET_STATE(cef.universal_access_from_file_urls,
+      web.allow_universal_access_from_file_urls);
+  SET_STATE(cef.file_access_from_file_urls,
+      web.allow_file_access_from_file_urls);
+  SET_STATE(cef.web_security, web.web_security_enabled);
+  SET_STATE(cef.image_loading, web.loads_images_automatically);
+  SET_STATE(cef.image_shrink_standalone_to_fit,
+      web.shrinks_standalone_images_to_fit);
+  SET_STATE(cef.text_area_resize, web.text_areas_are_resizable);
+  SET_STATE(cef.tab_to_links, web.tabs_to_links);
+  SET_STATE(cef.local_storage, web.local_storage_enabled);
+  SET_STATE(cef.databases, web.databases_enabled);
+  SET_STATE(cef.application_cache, web.application_cache_enabled);
+
+  // Never explicitly enable GPU-related functions in this method because the
+  // GPU blacklist is not being checked here.
+  if (cef.webgl == STATE_DISABLED)
+    web.experimental_webgl_enabled = false;
+}
+
+void SetString(CommandLinePrefStore* prefs,
+               const std::string& key,
+               const std::string& value) {
+  prefs->SetValue(
+      key,
+      make_scoped_ptr(new base::StringValue(value)),
+      WriteablePrefStore::DEFAULT_PREF_WRITE_FLAGS);
+}
+
+void SetBool(CommandLinePrefStore* prefs,
+             const std::string& key,
+             bool value) {
+  prefs->SetValue(key,
+      make_scoped_ptr(new base::FundamentalValue(value)),
+      WriteablePrefStore::DEFAULT_PREF_WRITE_FLAGS);
+}
+
+SkColor GetBaseBackgroundColor(CefRefPtr<CefBrowserHostImpl> browser) {
+  if (browser.get()) {
+    const CefBrowserSettings& browser_settings = browser->settings();
+    if (CefColorGetA(browser_settings.background_color) > 0) {
+      return SkColorSetRGB(
+          CefColorGetR(browser_settings.background_color),
+          CefColorGetG(browser_settings.background_color),
+          CefColorGetB(browser_settings.background_color));
+    }
+  }
+
+  const CefSettings& settings = CefContext::Get()->settings();
+  if (CefColorGetA(settings.background_color) > 0) {
+    return SkColorSetRGB(
+        CefColorGetR(settings.background_color),
+        CefColorGetG(settings.background_color),
+        CefColorGetB(settings.background_color));
+  }
+
+  return SK_ColorWHITE;
+}
+
+}  // namespace
+
+void SetCommandLinePrefDefaults(CommandLinePrefStore* prefs) {
+  const base::CommandLine* command_line =
+      base::CommandLine::ForCurrentProcess();
+
+  if (command_line->HasSwitch(switches::kDefaultEncoding)) {
+    SetString(prefs, prefs::kDefaultCharset,
+              command_line->GetSwitchValueASCII(switches::kDefaultEncoding));
+  }
+
+  if (command_line->HasSwitch(switches::kDisableJavascriptOpenWindows))
+    SetBool(prefs, prefs::kWebKitJavascriptCanOpenWindowsAutomatically, false);
+  if (command_line->HasSwitch(switches::kDisableJavascriptDomPaste))
+    SetBool(prefs, prefs::kWebKitDomPasteEnabled, false);
+  if (command_line->HasSwitch(switches::kDisableImageLoading))
+    SetBool(prefs, prefs::kWebKitLoadsImagesAutomatically, false);
+  if (command_line->HasSwitch(switches::kDisableTabToLinks))
+    SetBool(prefs, prefs::kWebkitTabsToLinks, false);
+}
+
+void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
+  PrefsTabHelper::RegisterProfilePrefs(registry);
+  RegisterAnimationPolicyPrefs(registry);
+
+  // From chrome::RegisterBrowserUserPrefs.
+  registry->RegisterBooleanPref(
+      prefs::kEnableDoNotTrack,
+      false,
+      user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
+#if defined(ENABLE_WEBRTC)
+  registry->RegisterBooleanPref(prefs::kWebRTCMultipleRoutesEnabled, true);
+  registry->RegisterBooleanPref(prefs::kWebRTCNonProxiedUdpEnabled, true);
+#endif
+#if !defined(OS_MACOSX)
+  registry->RegisterBooleanPref(prefs::kFullscreenAllowed, true);
+#endif
+
+  // From ChromeContentBrowserClient::RegisterProfilePrefs.
+  registry->RegisterBooleanPref(prefs::kDisable3DAPIs, false);
+  registry->RegisterBooleanPref(prefs::kEnableHyperlinkAuditing, true);
+
+  // From Profile::RegisterProfilePrefs.
+  registry->RegisterDictionaryPref(prefs::kPartitionDefaultZoomLevel);
+  registry->RegisterDictionaryPref(prefs::kPartitionPerHostZoomLevels);
+}
+
+void PopulateWebPreferences(content::RenderViewHost* rvh,
+                            content::WebPreferences& web) {
+  CefRefPtr<CefBrowserHostImpl> browser =
+      extensions::GetOwnerBrowserForHost(rvh);
+
+  // Set defaults for preferences that are not handled by PrefService.
+  SetDefaultPrefs(web);
+
+  // Set preferences based on the context's PrefService.
+  if (browser.get()) {
+    CefBrowserContext* profile =
+        static_cast<CefBrowserContext*>(
+            browser->web_contents()->GetBrowserContext());
+    SetChromePrefs(profile, web);
+  }
+
+  // Set preferences based on the extension.
+  SetExtensionPrefs(rvh, web);
+
+  // Set preferences based on CefBrowserSettings.
+  if (browser.get())
+    SetCefPrefs(browser->settings(), web);
+
+  // Set the background color for the WebView.
+  web.base_background_color = GetBaseBackgroundColor(browser);
+}
+
+}  // namespace renderer_prefs
--- a/libcef/browser/prefs/renderer_prefs.h
+++ b/libcef/browser/prefs/renderer_prefs.h
@ -0,0 +1,39 @@
+// Copyright (c) 2010 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that can
+// be found in the LICENSE file.
+
+#ifndef CEF_LIBCEF_BROWSER_PREFS_RENDERER_PREFS_H_
+#define CEF_LIBCEF_BROWSER_PREFS_RENDERER_PREFS_H_
+#pragma once
+
+#include "include/internal/cef_types_wrappers.h"
+
+class CommandLinePrefStore;
+
+namespace content {
+class RenderViewHost;
+struct WebPreferences;
+}
+
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
+namespace renderer_prefs {
+
+// Register additional renderer-related preferences.
+void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
+
+// Set default values based on CEF command-line flags for preferences that are
+// available via the PrefService. Chromium command-line flags should not exist
+// for these preferences.
+void SetCommandLinePrefDefaults(CommandLinePrefStore* prefs);
+
+// Populate WebPreferences based on a combination of command-line values,
+// PrefService and CefBrowserSettings.
+void PopulateWebPreferences(content::RenderViewHost* rvh,
+                            content::WebPreferences& web);
+
+}  // namespace renderer_prefs
+
+#endif  // CEF_LIBCEF_BROWSER_PREFS_RENDERER_PREFS_H_
--- a/libcef/common/cef_switches.cc
+++ b/libcef/common/cef_switches.cc
@ -73,6 +73,9 @@ const char kDisableTabToLinks[]           = "disable-tab-to-links";
 // Persist session cookies.
 const char kPersistSessionCookies[]       = "persist-session-cookies";

+// Persist user preferences.
+const char kPersistUserPreferences[]      = "persist-user-preferences";
+
 // Enable media (WebRTC audio/video) streaming.
 const char kEnableMediaStream[]           = "enable-media-stream";

--- a/libcef/common/cef_switches.h
+++ b/libcef/common/cef_switches.h
@ -34,6 +34,7 @@ extern const char kImageShrinkStandaloneToFit[];
 extern const char kDisableTextAreaResize[];
 extern const char kDisableTabToLinks[];
 extern const char kPersistSessionCookies[];
+extern const char kPersistUserPreferences[];
 extern const char kEnableMediaStream[];
 extern const char kEnableSpeechInput[];
 extern const char kEnableProfanityFilter[];
--- a/libcef/common/main_delegate.cc
+++ b/libcef/common/main_delegate.cc
@ -22,6 +22,7 @@
 #include "base/strings/string_util.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
+#include "chrome/browser/browser_process.h"
 #include "chrome/child/pdf_child_init.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
@ -682,6 +683,9 @@ void CefMainDelegate::InitializeResourceBundle() {
          locale,
          &content_client_,
          ui::ResourceBundle::LOAD_COMMON_RESOURCES);
+  if (!loaded_locale.empty() && g_browser_process)
+    g_browser_process->SetApplicationLocale(loaded_locale);
+
  ResourceBundle& resource_bundle = ResourceBundle::GetSharedInstance();

  if (!content_client_.pack_loading_disabled()) {
--- a/libcef/resources/cef_strings.grd
+++ b/libcef/resources/cef_strings.grd
@ -402,6 +402,84 @@ need to be translated for each locale.-->
          Hide This Plugin
        </message>
      </if>
+      
+      <!-- Preferences. -->
+      <!-- The default value for HTTP Accept-Language header. -->
+      <message name="IDS_ACCEPT_LANGUAGES" use_name_for_id="true">
+        en-US,en
+      </message>
+      <!-- The default value for |WebPreference::default_encoding|. -->
+      <message name="IDS_DEFAULT_ENCODING" use_name_for_id="true">
+        windows-1252
+      </message>
+      <!-- The default value for |WebPreference::uses_universal_detector|. -->
+      <message name="IDS_USES_UNIVERSAL_DETECTOR" use_name_for_id="true">
+        false
+      </message>
+      <!-- Locale-dependent static encodings string -->
+      <message name="IDS_STATIC_ENCODING_LIST" use_name_for_id="true">
+        windows-1252
+      </message>
+      <message name="IDS_ENCODING_DISPLAY_TEMPLATE" desc="The format of encodings in the encoding menu. Encoding categories are Unicode, Western, Turkish, Cyrillic, Chinese Simplified, Thai, Arabic, Hebrew and so forth. Encoding names are UTF-8, Windows-1252, ISO-8859-8, GB2312, etc.">
+        <ph name="ENCODING_CATEGORY">$1<ex>Japanese</ex></ph> (<ph name="ENCODING_NAME">$2<ex>Shift_JIS</ex></ph>)
+      </message>
+      <message name="IDS_ENCODING_UNICODE" desc="The text label of Unicode encodings">
+        Unicode
+      </message>
+      <message name="IDS_ENCODING_WESTERN" desc="The text label of West European character encoding">
+        Western
+      </message>
+      <message name="IDS_ENCODING_SIMP_CHINESE" desc="The text label of Simplified Chinese encodings">
+        Chinese Simplified
+      </message>
+      <message name="IDS_ENCODING_TRAD_CHINESE" desc="The text label of Traditional Chinese encodings">
+        Chinese Traditional
+      </message>
+      <message name="IDS_ENCODING_KOREAN" desc="The text label of Korean encoding">
+        Korean
+      </message>
+      <message name="IDS_ENCODING_JAPANESE" desc="The text label of Japanese encodings">
+        Japanese
+      </message>
+      <message name="IDS_ENCODING_THAI" desc="The text label of encoding thai language">
+        Thai
+      </message>
+      <message name="IDS_ENCODING_CENTRAL_EUROPEAN" desc="The text label of encoding Central European">
+        Central European
+      </message>
+      <message name="IDS_ENCODING_CYRILLIC" desc="The text label of Cyrillic encodings">
+        Cyrillic
+      </message>
+      <message name="IDS_ENCODING_GREEK" desc="The text label of Greek encodings">
+        Greek
+      </message>
+      <message name="IDS_ENCODING_BALTIC" desc="The text label of Baltic encodings">
+        Baltic
+      </message>
+      <message name="IDS_ENCODING_SOUTH_EUROPEAN" desc="The text label of South European encodings">
+        South European
+      </message>
+      <message name="IDS_ENCODING_NORDIC" desc="The text label of Nordic encoding">
+        Nordic
+      </message>
+      <message name="IDS_ENCODING_CELTIC" desc="The text label of Celtic encodings">
+        Celtic
+      </message>
+      <message name="IDS_ENCODING_ROMANIAN" desc="The text label of Romanian encoding">
+        Romanian
+      </message>
+      <message name="IDS_ENCODING_TURKISH" desc="The text label of Turkish encodings">
+        Turkish
+      </message>
+      <message name="IDS_ENCODING_ARABIC" desc="The text label of Arabic encodings">
+        Arabic
+      </message>
+      <message name="IDS_ENCODING_HEBREW" desc="The text label of Hebrew encodings">
+        Hebrew
+      </message>
+      <message name="IDS_ENCODING_VIETNAMESE" desc="The text label of Vietnamese encoding">
+        Vietnamese
+      </message>
    </messages>
  </release>
 </grit>
--- a/patch/patch.cfg
+++ b/patch/patch.cfg
@ -218,4 +218,17 @@ patches = [
    'name': 'extension_process_policy_543230',
    'path': '../chrome/common/extensions/',
  },
+  {
+    # Fix missing check for defined(ENABLE_THEMES) in
+    # renderer_preferences_util.cc on Linux.
+    # https://code.google.com/p/chromium/issues/detail?id=545103
+    'name': 'renderer_preferences_util_545103',
+    'path': '../chrome/browser/',
+  },
+  {
+    # Expose the FontFamilyCache UserData key.
+    # https://bitbucket.org/chromiumembedded/cef/issues/1501
+    'name': 'font_family_cache_1501',
+    'path': '../chrome/browser/',
+  },
 ]
--- a/patch/patches/font_family_cache_1501.patch
+++ b/patch/patches/font_family_cache_1501.patch
@ -0,0 +1,13 @@
+diff --git font_family_cache.h font_family_cache.h
+index d5ff699..71fa27b 100644
+--- font_family_cache.h
+++ font_family_cache.h
+@@ -19,6 +19,8 @@ class Profile;
+ 
+ FORWARD_DECLARE_TEST(FontFamilyCacheTest, Caching);
+ 
+extern const char kFontFamilyCacheKey[];
+
+ // Caches font family preferences associated with a PrefService. This class
+ // relies on the assumption that each concatenation of map_name + '.' + script
+ // is a unique string. It also relies on the assumption that the (const char*)
--- a/patch/patches/renderer_preferences_util_545103.patch
+++ b/patch/patches/renderer_preferences_util_545103.patch
@ -0,0 +1,24 @@
+diff --git renderer_preferences_util.cc renderer_preferences_util.cc
+index f7628fe..e2f1451 100644
+--- renderer_preferences_util.cc
+++ renderer_preferences_util.cc
+@@ -25,7 +25,8 @@
+ #include "ui/views/controls/textfield/textfield.h"
+ #endif
+ 
+-#if defined(USE_AURA) && defined(OS_LINUX) && !defined(OS_CHROMEOS)
+#if defined(USE_AURA) && defined(OS_LINUX) && !defined(OS_CHROMEOS) && \
+    defined(ENABLE_THEMES)
+ #include "chrome/browser/themes/theme_service.h"
+ #include "chrome/browser/themes/theme_service_factory.h"
+ #include "ui/views/linux_ui/linux_ui.h"
+@@ -81,7 +82,8 @@ void UpdateFromSystemSettings(content::RendererPreferences* prefs,
+   prefs->caret_blink_interval = views::Textfield::GetCaretBlinkMs() / 1000.0;
+ #endif
+ 
+-#if defined(USE_AURA) && defined(OS_LINUX) && !defined(OS_CHROMEOS)
+#if defined(USE_AURA) && defined(OS_LINUX) && !defined(OS_CHROMEOS) && \
+    defined(ENABLE_THEMES)
+   views::LinuxUI* linux_ui = views::LinuxUI::instance();
+   if (linux_ui) {
+     if (ThemeServiceFactory::GetForProfile(profile)->UsingSystemTheme()) {
--- a/tests/cefclient/browser/preferences_test.cc
+++ b/tests/cefclient/browser/preferences_test.cc
@ -196,6 +196,11 @@ class Handler : public CefMessageRouterBrowserSide::Handler {
        command_line->HasSwitch("proxy-pac-url") ||
        command_line->HasSwitch("proxy-server"));

+    // If allow running insecure content is enabled via the command-line then it
+    // cannot be enabled via preferences.
+    dict->SetBool("allow_running_insecure_content",
+        command_line->HasSwitch("allow-running-insecure-content"));
+
    // Serialize the state to JSON and return to the JavaScript caller.
    callback->Success(GetJSON(dict));
  }
--- a/tests/cefclient/resources/preferences.html
+++ b/tests/cefclient/resources/preferences.html
@ -32,6 +32,12 @@
            <input type="checkbox" id="enable_spellchecking"/> Enable spell checking
          </td>
        </tr>
+        <tr>
+          <td>
+            <br/>
+            <input type="checkbox" id="allow_running_insecure_content"/> Allow running insecure content
+          </td>
+        </tr>
        <tr>
          <td>
            <br/>
@ -214,6 +220,19 @@
              response.browser.enable_spellchecking;
        }

+        // Web content settings.
+        if (preferences_state.allow_running_insecure_content) {
+          // Cannot disable running insecure content when enabled via the
+          // command-line.
+          document.getElementById("allow_running_insecure_content").checked =
+              true;
+          document.getElementById("allow_running_insecure_content").disabled =
+              true;
+        } else {
+          document.getElementById("allow_running_insecure_content").checked =
+              response.webkit.webprefs.allow_running_insecure_content;
+        }
+
        // Proxy settings.
        document.getElementById("proxy_type").value = response.proxy.mode;

@ -252,6 +271,16 @@
            document.getElementById("enable_spellchecking").checked;
      }

+      // Web content settings.
+      if (!preferences_state.allow_running_insecure_content) {
+        has_preferences = true;
+
+        preferences.webkit = {};
+        preferences.webkit.webprefs = {};
+        preferences.webkit.webprefs.allow_running_insecure_content =
+            document.getElementById("allow_running_insecure_content").checked;
+      }
+
      // Proxy settings.
      if (!preferences_state.proxy_configured) {
        has_preferences = true;
--- a/tests/unittests/os_rendering_unittest.cc
+++ b/tests/unittests/os_rendering_unittest.cc
@ -692,11 +692,13 @@ class OSRTestHandler : public RoutingTestHandler,
          // first pixel of border
 #if defined(OS_MACOSX)
          EXPECT_EQ(0xff5d99d6, *(reinterpret_cast<const uint32*>(buffer)));
-#else
+#elif defined(OS_LINUX) || defined(OS_WIN)
          if (scale_factor_ == 1.0f)
-            EXPECT_EQ(0xffd69c2b, *(reinterpret_cast<const uint32*>(buffer)));
+            EXPECT_EQ(0xff6497ea, *(reinterpret_cast<const uint32*>(buffer)));
          else if (scale_factor_ == 2.0f)
-            EXPECT_EQ(0xffe59700, *(reinterpret_cast<const uint32*>(buffer)));
+            EXPECT_EQ(0xff4d90fe, *(reinterpret_cast<const uint32*>(buffer)));
+#else
+#error "Unsupported platform"
 #endif
          EXPECT_EQ(expanded_select_rect.width, width);
          EXPECT_EQ(expanded_select_rect.height, height);
--- a/tools/repack_locales.py
+++ b/tools/repack_locales.py
@ -54,6 +54,11 @@ def calc_inputs(locale):
  """Determine the files that need processing for the given locale."""
  inputs = []

+  #e.g.
+  # '<(SHARED_INTERMEDIATE_DIR)/chrome/platform_locale_settings_da.pak'
+  inputs.append(os.path.join(SHARE_INT_DIR, 'chrome',
+                'platform_locale_settings_%s.pak' % locale))
+
  #e.g.
  # '<(SHARED_INTERMEDIATE_DIR)/components/strings/components_strings_da.pak'
  inputs.append(os.path.join(SHARE_INT_DIR, 'components', 'strings',