chrome: Support client-created request contexts (see issue #2969)

RequestContextTest and URLRequestTest suites now pass with the Chrome runtime
enabled.

libcef/browser/browser_context.cc

@@ -12,11 +12,13 @@
 #include "libcef/browser/request_context_impl.h"
 #include "libcef/browser/thread_util.h"
 #include "libcef/common/cef_switches.h"
+#include "libcef/features/runtime.h"
 
 #include "base/files/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
+#include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_task_traits.h"
 #include "content/public/browser/browser_thread.h"
@@ -229,6 +231,25 @@ CefBrowserContext* CefBrowserContext::FromBrowserContext(
   return g_manager.Get().GetImplFromBrowserContext(context);
 }
 
+// static
+CefBrowserContext* CefBrowserContext::FromProfile(const Profile* profile) {
+  auto* cef_context = FromBrowserContext(profile);
+  if (cef_context)
+    return cef_context;
+
+  if (cef::IsChromeRuntimeEnabled()) {
+    auto* original_profile = profile->GetOriginalProfile();
+    if (original_profile != profile) {
+      // With the Chrome runtime if the user launches an incognito window via
+      // the UI we might be associated with the original Profile instead of the
+      // (current) incognito profile.
+      return FromBrowserContext(original_profile);
+    }
+  }
+
+  return nullptr;
+}
+
 // static
 std::vector<CefBrowserContext*> CefBrowserContext::GetAll() {
   return g_manager.Get().GetAllImpl();

libcef/browser/browser_context.h

@@ -103,6 +103,7 @@ class CefBrowserContext {
   // Returns the underlying CefBrowserContext if any.
   static CefBrowserContext* FromBrowserContext(
       const content::BrowserContext* context);
+  static CefBrowserContext* FromProfile(const Profile* profile);
 
   // Returns all existing CefBrowserContext.
   static std::vector<CefBrowserContext*> GetAll();

libcef/browser/chrome/chrome_browser_context.cc

@@ -6,11 +6,11 @@
 
 #include "libcef/browser/prefs/browser_prefs.h"
 
-#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/browser_process.h"
 
 ChromeBrowserContext::ChromeBrowserContext(
     const CefRequestContextSettings& settings)
-    : CefBrowserContext(settings) {}
+    : CefBrowserContext(settings), weak_ptr_factory_(this) {}
 
 ChromeBrowserContext::~ChromeBrowserContext() = default;
 
@@ -22,19 +22,73 @@ Profile* ChromeBrowserContext::AsProfile() {
   return profile_;
 }
 
-void ChromeBrowserContext::Initialize() {
+void ChromeBrowserContext::InitializeAsync(base::OnceClosure initialized_cb) {
+  initialized_cb_ = std::move(initialized_cb);
+
   CefBrowserContext::Initialize();
 
-  // TODO(chrome-runtime): ProfileManager can create new profiles relative to
-  // the user-data-dir, but it should be done asynchronously.
-  // The global ProfileManager instance can be retrieved via
-  // |g_browser_process->profile_manager()|.
-  profile_ = ProfileManager::GetLastUsedProfileAllowedByPolicy();
+  if (!cache_path_.empty()) {
+    auto* profile_manager = g_browser_process->profile_manager();
+    const auto& user_data_dir = profile_manager->user_data_dir();
 
-  browser_prefs::SetLanguagePrefs(profile_);
+    if (cache_path_ == user_data_dir) {
+      // Use the default disk-based profile.
+      ProfileCreated(profile_manager->GetActiveUserProfile(),
+                     Profile::CreateStatus::CREATE_STATUS_INITIALIZED);
+      return;
+    } else if (cache_path_.DirName() == user_data_dir) {
+      // Create or load a specific disk-based profile. May continue
+      // synchronously or asynchronously.
+      profile_manager->CreateProfileAsync(
+          cache_path_,
+          base::Bind(&ChromeBrowserContext::ProfileCreated,
+                     weak_ptr_factory_.GetWeakPtr()),
+          /*name=*/base::string16(), /*icon_url=*/std::string());
+      return;
+    } else {
+      // All profile directories must be relative to |user_data_dir|.
+      LOG(ERROR) << "Cannot create profile at path "
+                 << cache_path_.AsUTF8Unsafe();
+    }
+  }
+
+  // Default to creating a new/unique OffTheRecord profile.
+  ProfileCreated(nullptr, Profile::CreateStatus::CREATE_STATUS_CANCELED);
 }
 
 void ChromeBrowserContext::Shutdown() {
   CefBrowserContext::Shutdown();
+  // |g_browser_process| may be nullptr during shutdown.
+  if (should_destroy_ && g_browser_process) {
+    g_browser_process->profile_manager()
+        ->GetActiveUserProfile()
+        ->DestroyOffTheRecordProfile(profile_);
+  }
   profile_ = nullptr;
 }
+
+void ChromeBrowserContext::ProfileCreated(Profile* profile,
+                                          Profile::CreateStatus status) {
+  if (status != Profile::CreateStatus::CREATE_STATUS_CREATED &&
+      status != Profile::CreateStatus::CREATE_STATUS_INITIALIZED) {
+    DCHECK(!profile);
+
+    // Creation of a disk-based profile failed for some reason. Create a
+    // new/unique OffTheRecord profile instead.
+    const auto& profile_id = Profile::OTRProfileID::CreateUniqueForCEF();
+    profile = g_browser_process->profile_manager()
+                  ->GetActiveUserProfile()
+                  ->GetOffTheRecordProfile(profile_id);
+    status = Profile::CreateStatus::CREATE_STATUS_INITIALIZED;
+    should_destroy_ = true;
+  }
+
+  if (status == Profile::CreateStatus::CREATE_STATUS_INITIALIZED) {
+    DCHECK(profile);
+    DCHECK(!profile_);
+    profile_ = profile;
+    browser_prefs::SetLanguagePrefs(profile_);
+
+    std::move(initialized_cb_).Run();
+  }
+}

libcef/browser/chrome/chrome_browser_context.h

@@ -8,22 +8,32 @@
 
 #include "libcef/browser/browser_context.h"
 
+#include "base/memory/weak_ptr.h"
+#include "chrome/browser/profiles/profile_manager.h"
+
 // See CefBrowserContext documentation for usage. Only accessed on the UI thread
 // unless otherwise indicated.
 class ChromeBrowserContext : public CefBrowserContext {
  public:
   explicit ChromeBrowserContext(const CefRequestContextSettings& settings);
 
+  void InitializeAsync(base::OnceClosure initialized_cb);
+
   // CefBrowserContext overrides.
   content::BrowserContext* AsBrowserContext() override;
   Profile* AsProfile() override;
-  void Initialize() override;
   void Shutdown() override;
 
  private:
   ~ChromeBrowserContext() override;
 
+  void ProfileCreated(Profile* profile, Profile::CreateStatus status);
+
+  base::OnceClosure initialized_cb_;
   Profile* profile_ = nullptr;
+  bool should_destroy_ = false;
+
+  base::WeakPtrFactory<ChromeBrowserContext> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserContext);
 };

libcef/browser/chrome/chrome_content_browser_client_cef.cc

@@ -175,7 +175,7 @@ bool ChromeContentBrowserClientCef::WillCreateURLLoaderFactory(
   // For example, the User Manager profile created via
   // profiles::CreateSystemProfileForUserManager.
   auto profile = Profile::FromBrowserContext(browser_context);
-  if (!CefBrowserContext::FromBrowserContext(profile->GetOriginalProfile()))
+  if (!CefBrowserContext::FromProfile(profile))
     return false;
 
   auto request_handler = net_service::CreateInterceptedRequestHandler(

libcef/browser/net_service/resource_request_handler_wrapper.cc

@@ -262,8 +262,7 @@ class InterceptedRequestHandlerWrapper : public InterceptedRequestHandler {
       browser_context_ = browser_context;
 
       auto profile = Profile::FromBrowserContext(browser_context);
-      auto cef_browser_context =
-          CefBrowserContext::FromBrowserContext(profile->GetOriginalProfile());
+      auto cef_browser_context = CefBrowserContext::FromProfile(profile);
       iothread_state_ = cef_browser_context->iothread_state();
       DCHECK(iothread_state_);
       cookieable_schemes_ = cef_browser_context->GetCookieableSchemes();

libcef/browser/request_context_impl.cc

@@ -612,7 +612,19 @@ CefRequestContextImpl::GetOrCreateRequestContext(const Config& config) {
   }
 
   // The new context will be initialized later by EnsureBrowserContext().
-  return new CefRequestContextImpl(config);
+  CefRefPtr<CefRequestContextImpl> context = new CefRequestContextImpl(config);
+
+  if (config.handler) {
+    // Keep the context alive until OnRequestContextInitialized is called.
+    if (CEF_CURRENTLY_ON_UIT()) {
+      context->Initialize();
+    } else {
+      CEF_POST_TASK(
+          CEF_UIT, base::BindOnce(&CefRequestContextImpl::Initialize, context));
+    }
+  }
+
+  return context;
 }
 
 CefRequestContextImpl::CefRequestContextImpl(
@@ -645,16 +657,20 @@ void CefRequestContextImpl::Initialize() {
     }
   }
 
+  auto initialized_cb =
+      base::BindOnce(&CefRequestContextImpl::BrowserContextInitialized, this);
+
   if (!browser_context_) {
     // Create a new CefBrowserContext instance. If the cache path is non-
     // empty then this new instance will become the globally registered
     // CefBrowserContext for that path. Otherwise, this new instance will
     // be a completely isolated "incognito mode" context.
-    browser_context_ =
-        CefAppManager::Get()->CreateNewBrowserContext(config_.settings);
+    browser_context_ = CefAppManager::Get()->CreateNewBrowserContext(
+        config_.settings, std::move(initialized_cb));
   } else {
     // Share the same settings as the existing context.
     config_.settings = browser_context_->settings();
+    std::move(initialized_cb).Run();
   }
 
   // We'll disassociate from |browser_context_| on destruction.
@@ -666,9 +682,16 @@ void CefRequestContextImpl::Initialize() {
     // IsSharedWith().
     config_.other = nullptr;
   }
+}
 
-  if (config_.handler)
-    config_.handler->OnRequestContextInitialized(this);
+void CefRequestContextImpl::BrowserContextInitialized() {
+  if (config_.handler) {
+    // Always execute asynchronously so the current call stack can unwind.
+    CEF_POST_TASK(
+        CEF_UIT,
+        base::BindOnce(&CefRequestContextHandler::OnRequestContextInitialized,
+                       config_.handler, CefRefPtr<CefRequestContext>(this)));
+  }
 }
 
 void CefRequestContextImpl::EnsureBrowserContext() {

libcef/browser/request_context_impl.h

@@ -128,6 +128,7 @@ class CefRequestContextImpl : public CefRequestContext {
   explicit CefRequestContextImpl(const Config& config);
 
   void Initialize();
+  void BrowserContextInitialized();
 
   // Make sure the browser context exists. Only called on the UI thread.
   void EnsureBrowserContext();