Add CefRequestHandler::OnQuotaRequest callback for handling webkitStorageInfo.requestQuota requests (issue #732).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@816 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

cef_paths.gypi

@@ -178,6 +178,8 @@
       'libcef_dll/cpptoc/process_message_cpptoc.h',
       'libcef_dll/ctocpp/proxy_handler_ctocpp.cc',
       'libcef_dll/ctocpp/proxy_handler_ctocpp.h',
+      'libcef_dll/cpptoc/quota_callback_cpptoc.cc',
+      'libcef_dll/cpptoc/quota_callback_cpptoc.h',
       'libcef_dll/ctocpp/read_handler_ctocpp.cc',
       'libcef_dll/ctocpp/read_handler_ctocpp.h',
       'libcef_dll/ctocpp/render_process_handler_ctocpp.cc',
@@ -312,6 +314,8 @@
       'libcef_dll/ctocpp/process_message_ctocpp.h',
       'libcef_dll/cpptoc/proxy_handler_cpptoc.cc',
       'libcef_dll/cpptoc/proxy_handler_cpptoc.h',
+      'libcef_dll/ctocpp/quota_callback_ctocpp.cc',
+      'libcef_dll/ctocpp/quota_callback_ctocpp.h',
       'libcef_dll/cpptoc/read_handler_cpptoc.cc',
       'libcef_dll/cpptoc/read_handler_cpptoc.h',
       'libcef_dll/cpptoc/render_process_handler_cpptoc.cc',

include/capi/cef_request_handler_capi.h

@@ -68,6 +68,28 @@ typedef struct _cef_auth_callback_t {
 } cef_auth_callback_t;
 
 
+///
+// Callback structure used for asynchronous continuation of quota requests.
+///
+typedef struct _cef_quota_callback_t {
+  ///
+  // Base structure.
+  ///
+  cef_base_t base;
+
+  ///
+  // Continue the quota request. If |allow| is true (1) the request will be
+  // allowed. Otherwise, the request will be denied.
+  ///
+  void (CEF_CALLBACK *cont)(struct _cef_quota_callback_t* self, int allow);
+
+  ///
+  // Cancel the quota request.
+  ///
+  void (CEF_CALLBACK *cancel)(struct _cef_quota_callback_t* self);
+} cef_quota_callback_t;
+
+
 ///
 // Implement this structure to handle events related to browser requests. The
 // functions of this structure will be called on the thread indicated.
@@ -119,6 +141,18 @@ typedef struct _cef_request_handler_t {
       const cef_string_t* host, int port, const cef_string_t* realm,
       const cef_string_t* scheme, struct _cef_auth_callback_t* callback);
 
+  ///
+  // Called on the IO thread when JavaScript requests a specific storage quota
+  // size via the webkitStorageInfo.requestQuota function. |origin_url| is the
+  // origin of the page making the request. |new_size| is the requested quota
+  // size in bytes. Return true (1) and call cef_quota_callback_t::Complete()
+  // either in this function or at a later time to grant or deny the request.
+  // Return false (0) to cancel the request.
+  ///
+  int (CEF_CALLBACK *on_quota_request)(struct _cef_request_handler_t* self,
+      struct _cef_browser_t* browser, const cef_string_t* origin_url,
+      int64 new_size, struct _cef_quota_callback_t* callback);
+
   ///
   // Called on the IO thread to retrieve the cookie manager. |main_url| is the
   // URL of the top-level frame. Cookies managers can be unique per browser or

include/cef_request_handler.h

@@ -68,6 +68,27 @@ class CefAuthCallback : public virtual CefBase {
 };
 
 
+///
+// Callback interface used for asynchronous continuation of quota requests.
+///
+/*--cef(source=library)--*/
+class CefQuotaCallback : public virtual CefBase {
+ public:
+  ///
+  // Continue the quota request. If |allow| is true the request will be
+  // allowed. Otherwise, the request will be denied.
+  ///
+  /*--cef(capi_name=cont)--*/
+  virtual void Continue(bool allow) =0;
+
+  ///
+  // Cancel the quota request.
+  ///
+  /*--cef()--*/
+  virtual void Cancel() =0;
+};
+
+
 ///
 // Implement this interface to handle events related to browser requests. The
 // methods of this class will be called on the thread indicated.
@@ -131,6 +152,22 @@ class CefRequestHandler : public virtual CefBase {
     return false;
   }
 
+  ///
+  // Called on the IO thread when JavaScript requests a specific storage quota
+  // size via the webkitStorageInfo.requestQuota function. |origin_url| is the
+  // origin of the page making the request. |new_size| is the requested quota
+  // size in bytes. Return true and call CefQuotaCallback::Complete() either in
+  // this function or at a later time to grant or deny the request. Return false
+  // to cancel the request.
+  ///
+  /*--cef(optional_param=realm)--*/
+  virtual bool OnQuotaRequest(CefRefPtr<CefBrowser> browser,
+                              const CefString& origin_url,
+                              int64 new_size,
+                              CefRefPtr<CefQuotaCallback> callback) {
+    return false;
+  }
+
   ///
   // Called on the IO thread to retrieve the cookie manager. |main_url| is the
   // URL of the top-level frame. Cookies managers can be unique per browser or

libcef/browser/content_browser_client.cc

@@ -22,6 +22,7 @@
 #include "base/path_service.h"
 #include "content/public/browser/access_token_store.h"
 #include "content/public/browser/media_observer.h"
+#include "content/public/browser/quota_permission_context.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/common/content_switches.h"
@@ -49,6 +50,117 @@ class CefAccessTokenStore : public content::AccessTokenStore {
   AccessTokenSet access_token_set_;
 };
 
+class CefQuotaCallbackImpl : public CefQuotaCallback {
+ public:
+  explicit CefQuotaCallbackImpl(
+      const content::QuotaPermissionContext::PermissionCallback& callback)
+      : callback_(callback) {
+  }
+  ~CefQuotaCallbackImpl() {
+    if (!callback_.is_null()) {
+      // The callback is still pending. Cancel it now.
+      if (CEF_CURRENTLY_ON_IOT()) {
+        CancelNow(callback_);
+      } else {
+        CEF_POST_TASK(CEF_IOT,
+            base::Bind(&CefQuotaCallbackImpl::CancelNow, callback_));
+      }
+    }
+  }
+
+  virtual void Continue(bool allow) OVERRIDE {
+    if (CEF_CURRENTLY_ON_IOT()) {
+      if (!callback_.is_null()) {
+        callback_.Run(allow ?
+          content::QuotaPermissionContext::QUOTA_PERMISSION_RESPONSE_ALLOW :
+          content::QuotaPermissionContext::QUOTA_PERMISSION_RESPONSE_DISALLOW);
+        callback_.Reset();
+      }
+    } else {
+      CEF_POST_TASK(CEF_IOT,
+          base::Bind(&CefQuotaCallbackImpl::Continue, this, allow));
+    }
+  }
+
+  virtual void Cancel() OVERRIDE {
+    if (CEF_CURRENTLY_ON_IOT()) {
+      if (!callback_.is_null()) {
+        CancelNow(callback_);
+        callback_.Reset();
+      }
+    } else {
+      CEF_POST_TASK(CEF_IOT, base::Bind(&CefQuotaCallbackImpl::Cancel, this));
+    }
+  }
+
+  void Disconnect() {
+    callback_.Reset();
+  }
+
+ private:
+  static void CancelNow(
+      const content::QuotaPermissionContext::PermissionCallback& callback) {
+    CEF_REQUIRE_IOT();
+    callback.Run(
+        content::QuotaPermissionContext::QUOTA_PERMISSION_RESPONSE_CANCELLED);
+  }
+
+  content::QuotaPermissionContext::PermissionCallback callback_;
+
+  IMPLEMENT_REFCOUNTING(CefQuotaCallbackImpl);
+};
+
+class CefQuotaPermissionContext : public content::QuotaPermissionContext {
+ public:
+  CefQuotaPermissionContext() {
+  }
+
+  // The callback will be dispatched on the IO thread.
+  virtual void RequestQuotaPermission(
+      const GURL& origin_url,
+      quota::StorageType type,
+      int64 new_quota,
+      int render_process_id,
+      int render_view_id,
+      const PermissionCallback& callback) OVERRIDE {
+    if (type != quota::kStorageTypePersistent) {
+      // To match Chrome behavior we only support requesting quota with this
+      // interface for Persistent storage type.
+      callback.Run(QUOTA_PERMISSION_RESPONSE_DISALLOW);
+      return;
+    }
+
+    bool handled = false;
+
+    CefRefPtr<CefBrowserHostImpl> browser =
+        CefBrowserHostImpl::GetBrowserByRoutingID(render_process_id,
+                                                  render_view_id);
+    if (browser.get()) {
+      CefRefPtr<CefClient> client = browser->GetClient();
+      if (client.get()) {
+        CefRefPtr<CefRequestHandler> handler = client->GetRequestHandler();
+        if (handler.get()) {
+          CefRefPtr<CefQuotaCallbackImpl> callbackImpl(
+              new CefQuotaCallbackImpl(callback));
+          handled = handler->OnQuotaRequest(browser.get(), origin_url.spec(),
+                                            new_quota, callbackImpl.get());
+          if (!handled)
+            callbackImpl->Disconnect();
+        }
+      }
+    }
+
+    if (!handled) {
+      // Disallow the request by default.
+      callback.Run(QUOTA_PERMISSION_RESPONSE_DISALLOW);
+    }
+  }
+
+ private:
+  virtual ~CefQuotaPermissionContext() {
+  }
+};
+
 }  // namespace
 
 
@@ -140,6 +252,11 @@ void CefContentBrowserClient::AppendExtraCommandLineSwitches(
   }
 }
 
+content::QuotaPermissionContext*
+    CefContentBrowserClient::CreateQuotaPermissionContext() {
+  return new CefQuotaPermissionContext();
+}
+
 content::MediaObserver* CefContentBrowserClient::GetMediaObserver() {
   // TODO(cef): Return NULL once it's supported. See crbug.com/116113.
   if (!media_observer_.get())

libcef/browser/content_browser_client.h

@@ -37,6 +37,8 @@ class CefContentBrowserClient : public content::ContentBrowserClient {
       content::RenderProcessHost* host) OVERRIDE;
   virtual void AppendExtraCommandLineSwitches(CommandLine* command_line,
                                               int child_process_id) OVERRIDE;
+  virtual content::QuotaPermissionContext*
+      CreateQuotaPermissionContext() OVERRIDE;
   virtual content::MediaObserver* GetMediaObserver() OVERRIDE;
   virtual content::AccessTokenStore* CreateAccessTokenStore() OVERRIDE;
   virtual void ResourceDispatcherHostCreated() OVERRIDE;

libcef_dll/cpptoc/quota_callback_cpptoc.cc

@@ -0,0 +1,56 @@
+// Copyright (c) 2012 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.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool. If making changes by
+// hand only do so within the body of existing method and function
+// implementations. See the translator.README.txt file in the tools directory
+// for more information.
+//
+
+#include "libcef_dll/cpptoc/quota_callback_cpptoc.h"
+
+
+// MEMBER FUNCTIONS - Body may be edited by hand.
+
+void CEF_CALLBACK quota_callback_cont(struct _cef_quota_callback_t* self,
+    int allow) {
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return;
+
+  // Execute
+  CefQuotaCallbackCppToC::Get(self)->Continue(
+      allow?true:false);
+}
+
+void CEF_CALLBACK quota_callback_cancel(struct _cef_quota_callback_t* self) {
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return;
+
+  // Execute
+  CefQuotaCallbackCppToC::Get(self)->Cancel();
+}
+
+
+// CONSTRUCTOR - Do not edit by hand.
+
+CefQuotaCallbackCppToC::CefQuotaCallbackCppToC(CefQuotaCallback* cls)
+    : CefCppToC<CefQuotaCallbackCppToC, CefQuotaCallback, cef_quota_callback_t>(
+        cls) {
+  struct_.struct_.cont = quota_callback_cont;
+  struct_.struct_.cancel = quota_callback_cancel;
+}
+
+#ifndef NDEBUG
+template<> long CefCppToC<CefQuotaCallbackCppToC, CefQuotaCallback,
+    cef_quota_callback_t>::DebugObjCt = 0;
+#endif
+

libcef_dll/cpptoc/quota_callback_cpptoc.h

@@ -0,0 +1,37 @@
+// Copyright (c) 2012 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.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool. If making changes by
+// hand only do so within the body of existing method and function
+// implementations. See the translator.README.txt file in the tools directory
+// for more information.
+//
+
+#ifndef CEF_LIBCEF_DLL_CPPTOC_QUOTA_CALLBACK_CPPTOC_H_
+#define CEF_LIBCEF_DLL_CPPTOC_QUOTA_CALLBACK_CPPTOC_H_
+#pragma once
+
+#ifndef BUILDING_CEF_SHARED
+#pragma message("Warning: "__FILE__" may be accessed DLL-side only")
+#else  // BUILDING_CEF_SHARED
+
+#include "include/cef_request_handler.h"
+#include "include/capi/cef_request_handler_capi.h"
+#include "libcef_dll/cpptoc/cpptoc.h"
+
+// Wrap a C++ class with a C structure.
+// This class may be instantiated and accessed DLL-side only.
+class CefQuotaCallbackCppToC
+    : public CefCppToC<CefQuotaCallbackCppToC, CefQuotaCallback,
+        cef_quota_callback_t> {
+ public:
+  explicit CefQuotaCallbackCppToC(CefQuotaCallback* cls);
+  virtual ~CefQuotaCallbackCppToC() {}
+};
+
+#endif  // BUILDING_CEF_SHARED
+#endif  // CEF_LIBCEF_DLL_CPPTOC_QUOTA_CALLBACK_CPPTOC_H_
+

libcef_dll/cpptoc/request_handler_cpptoc.cc

@@ -16,6 +16,7 @@
 #include "libcef_dll/ctocpp/browser_ctocpp.h"
 #include "libcef_dll/ctocpp/cookie_manager_ctocpp.h"
 #include "libcef_dll/ctocpp/frame_ctocpp.h"
+#include "libcef_dll/ctocpp/quota_callback_ctocpp.h"
 #include "libcef_dll/ctocpp/request_ctocpp.h"
 
 
@@ -167,6 +168,39 @@ int CEF_CALLBACK request_handler_get_auth_credentials(
   return _retval;
 }
 
+int CEF_CALLBACK request_handler_on_quota_request(
+    struct _cef_request_handler_t* self, cef_browser_t* browser,
+    const cef_string_t* origin_url, int64 new_size,
+    cef_quota_callback_t* callback) {
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return 0;
+  // Verify param: browser; type: refptr_diff
+  DCHECK(browser);
+  if (!browser)
+    return 0;
+  // Verify param: origin_url; type: string_byref_const
+  DCHECK(origin_url);
+  if (!origin_url)
+    return 0;
+  // Verify param: callback; type: refptr_diff
+  DCHECK(callback);
+  if (!callback)
+    return 0;
+
+  // Execute
+  bool _retval = CefRequestHandlerCppToC::Get(self)->OnQuotaRequest(
+      CefBrowserCToCpp::Wrap(browser),
+      CefString(origin_url),
+      new_size,
+      CefQuotaCallbackCToCpp::Wrap(callback));
+
+  // Return type: bool
+  return _retval;
+}
+
 cef_cookie_manager_t* CEF_CALLBACK request_handler_get_cookie_manager(
     struct _cef_request_handler_t* self, cef_browser_t* browser,
     const cef_string_t* main_url) {
@@ -241,6 +275,7 @@ CefRequestHandlerCppToC::CefRequestHandlerCppToC(CefRequestHandler* cls)
   struct_.struct_.get_resource_handler = request_handler_get_resource_handler;
   struct_.struct_.on_resource_redirect = request_handler_on_resource_redirect;
   struct_.struct_.get_auth_credentials = request_handler_get_auth_credentials;
+  struct_.struct_.on_quota_request = request_handler_on_quota_request;
   struct_.struct_.get_cookie_manager = request_handler_get_cookie_manager;
   struct_.struct_.on_protocol_execution = request_handler_on_protocol_execution;
 }

libcef_dll/ctocpp/quota_callback_ctocpp.cc

@@ -0,0 +1,44 @@
+// Copyright (c) 2012 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.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool. If making changes by
+// hand only do so within the body of existing method and function
+// implementations. See the translator.README.txt file in the tools directory
+// for more information.
+//
+
+#include "libcef_dll/ctocpp/quota_callback_ctocpp.h"
+
+
+// VIRTUAL METHODS - Body may be edited by hand.
+
+void CefQuotaCallbackCToCpp::Continue(bool allow) {
+  if (CEF_MEMBER_MISSING(struct_, cont))
+    return;
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  // Execute
+  struct_->cont(struct_,
+      allow);
+}
+
+void CefQuotaCallbackCToCpp::Cancel() {
+  if (CEF_MEMBER_MISSING(struct_, cancel))
+    return;
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  // Execute
+  struct_->cancel(struct_);
+}
+
+
+#ifndef NDEBUG
+template<> long CefCToCpp<CefQuotaCallbackCToCpp, CefQuotaCallback,
+    cef_quota_callback_t>::DebugObjCt = 0;
+#endif
+

libcef_dll/ctocpp/quota_callback_ctocpp.h

@@ -0,0 +1,43 @@
+// Copyright (c) 2012 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.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool. If making changes by
+// hand only do so within the body of existing method and function
+// implementations. See the translator.README.txt file in the tools directory
+// for more information.
+//
+
+#ifndef CEF_LIBCEF_DLL_CTOCPP_QUOTA_CALLBACK_CTOCPP_H_
+#define CEF_LIBCEF_DLL_CTOCPP_QUOTA_CALLBACK_CTOCPP_H_
+#pragma once
+
+#ifndef USING_CEF_SHARED
+#pragma message("Warning: "__FILE__" may be accessed wrapper-side only")
+#else  // USING_CEF_SHARED
+
+#include "include/cef_request_handler.h"
+#include "include/capi/cef_request_handler_capi.h"
+#include "libcef_dll/ctocpp/ctocpp.h"
+
+// Wrap a C structure with a C++ class.
+// This class may be instantiated and accessed wrapper-side only.
+class CefQuotaCallbackCToCpp
+    : public CefCToCpp<CefQuotaCallbackCToCpp, CefQuotaCallback,
+        cef_quota_callback_t> {
+ public:
+  explicit CefQuotaCallbackCToCpp(cef_quota_callback_t* str)
+      : CefCToCpp<CefQuotaCallbackCToCpp, CefQuotaCallback,
+          cef_quota_callback_t>(str) {}
+  virtual ~CefQuotaCallbackCToCpp() {}
+
+  // CefQuotaCallback methods
+  virtual void Continue(bool allow) OVERRIDE;
+  virtual void Cancel() OVERRIDE;
+};
+
+#endif  // USING_CEF_SHARED
+#endif  // CEF_LIBCEF_DLL_CTOCPP_QUOTA_CALLBACK_CTOCPP_H_
+

libcef_dll/ctocpp/request_handler_ctocpp.cc

@@ -14,6 +14,7 @@
 #include "libcef_dll/cpptoc/browser_cpptoc.h"
 #include "libcef_dll/cpptoc/cookie_manager_cpptoc.h"
 #include "libcef_dll/cpptoc/frame_cpptoc.h"
+#include "libcef_dll/cpptoc/quota_callback_cpptoc.h"
 #include "libcef_dll/cpptoc/request_cpptoc.h"
 #include "libcef_dll/ctocpp/request_handler_ctocpp.h"
 #include "libcef_dll/ctocpp/resource_handler_ctocpp.h"
@@ -157,6 +158,38 @@ bool CefRequestHandlerCToCpp::GetAuthCredentials(CefRefPtr<CefBrowser> browser,
   return _retval?true:false;
 }
 
+bool CefRequestHandlerCToCpp::OnQuotaRequest(CefRefPtr<CefBrowser> browser,
+    const CefString& origin_url, int64 new_size,
+    CefRefPtr<CefQuotaCallback> callback) {
+  if (CEF_MEMBER_MISSING(struct_, on_quota_request))
+    return false;
+
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  // Verify param: browser; type: refptr_diff
+  DCHECK(browser.get());
+  if (!browser.get())
+    return false;
+  // Verify param: origin_url; type: string_byref_const
+  DCHECK(!origin_url.empty());
+  if (origin_url.empty())
+    return false;
+  // Verify param: callback; type: refptr_diff
+  DCHECK(callback.get());
+  if (!callback.get())
+    return false;
+
+  // Execute
+  int _retval = struct_->on_quota_request(struct_,
+      CefBrowserCppToC::Wrap(browser),
+      origin_url.GetStruct(),
+      new_size,
+      CefQuotaCallbackCppToC::Wrap(callback));
+
+  // Return type: bool
+  return _retval?true:false;
+}
+
 CefRefPtr<CefCookieManager> CefRequestHandlerCToCpp::GetCookieManager(
     CefRefPtr<CefBrowser> browser, const CefString& main_url) {
   if (CEF_MEMBER_MISSING(struct_, get_cookie_manager))

libcef_dll/ctocpp/request_handler_ctocpp.h

@@ -46,6 +46,9 @@ class CefRequestHandlerCToCpp
       CefRefPtr<CefFrame> frame, bool isProxy, const CefString& host, int port,
       const CefString& realm, const CefString& scheme,
       CefRefPtr<CefAuthCallback> callback) OVERRIDE;
+  virtual bool OnQuotaRequest(CefRefPtr<CefBrowser> browser,
+      const CefString& origin_url, int64 new_size,
+      CefRefPtr<CefQuotaCallback> callback) OVERRIDE;
   virtual CefRefPtr<CefCookieManager> GetCookieManager(
       CefRefPtr<CefBrowser> browser, const CefString& main_url) OVERRIDE;
   virtual void OnProtocolExecution(CefRefPtr<CefBrowser> browser,

libcef_dll/libcef_dll.cc

@@ -49,6 +49,7 @@
 #include "libcef_dll/cpptoc/list_value_cpptoc.h"
 #include "libcef_dll/cpptoc/menu_model_cpptoc.h"
 #include "libcef_dll/cpptoc/process_message_cpptoc.h"
+#include "libcef_dll/cpptoc/quota_callback_cpptoc.h"
 #include "libcef_dll/cpptoc/scheme_registrar_cpptoc.h"
 #include "libcef_dll/cpptoc/stream_reader_cpptoc.h"
 #include "libcef_dll/cpptoc/stream_writer_cpptoc.h"
@@ -192,6 +193,7 @@ CEF_EXPORT void cef_shutdown() {
   DCHECK_EQ(CefMenuModelCppToC::DebugObjCt, 0);
   DCHECK_EQ(CefProcessMessageCppToC::DebugObjCt, 0);
   DCHECK_EQ(CefProxyHandlerCToCpp::DebugObjCt, 0);
+  DCHECK_EQ(CefQuotaCallbackCppToC::DebugObjCt, 0);
   DCHECK_EQ(CefReadHandlerCToCpp::DebugObjCt, 0);
   DCHECK_EQ(CefRenderProcessHandlerCToCpp::DebugObjCt, 0);
   DCHECK_EQ(CefRequestHandlerCToCpp::DebugObjCt, 0);

libcef_dll/wrapper/libcef_dll_wrapper.cc

@@ -78,6 +78,7 @@
 #include "libcef_dll/ctocpp/list_value_ctocpp.h"
 #include "libcef_dll/ctocpp/menu_model_ctocpp.h"
 #include "libcef_dll/ctocpp/process_message_ctocpp.h"
+#include "libcef_dll/ctocpp/quota_callback_ctocpp.h"
 #include "libcef_dll/ctocpp/scheme_registrar_ctocpp.h"
 #include "libcef_dll/ctocpp/stream_reader_ctocpp.h"
 #include "libcef_dll/ctocpp/stream_writer_ctocpp.h"
@@ -184,6 +185,7 @@ CEF_GLOBAL void CefShutdown() {
   DCHECK_EQ(CefMenuModelCToCpp::DebugObjCt, 0);
   DCHECK_EQ(CefProcessMessageCToCpp::DebugObjCt, 0);
   DCHECK_EQ(CefProxyHandlerCppToC::DebugObjCt, 0);
+  DCHECK_EQ(CefQuotaCallbackCToCpp::DebugObjCt, 0);
   DCHECK_EQ(CefReadHandlerCppToC::DebugObjCt, 0);
   DCHECK_EQ(CefRenderProcessHandlerCppToC::DebugObjCt, 0);
   DCHECK_EQ(CefRequestHandlerCppToC::DebugObjCt, 0);

tests/cefclient/client_handler.cpp

@@ -390,6 +390,17 @@ CefRefPtr<CefResourceHandler> ClientHandler::GetResourceHandler(
   return handler;
 }
 
+bool ClientHandler::OnQuotaRequest(CefRefPtr<CefBrowser> browser,
+                                   const CefString& origin_url,
+                                   int64 new_size,
+                                   CefRefPtr<CefQuotaCallback> callback) {
+  static const int64 max_size = 1024 * 1024 * 20;  // 20mb.
+
+  // Grant the quota request if the size is reasonable.
+  callback->Continue(new_size <= max_size);
+  return true;
+}
+
 void ClientHandler::OnProtocolExecution(CefRefPtr<CefBrowser> browser,
                                         const CefString& url,
                                         bool& allow_os_execution) {

tests/cefclient/client_handler.h

@@ -172,6 +172,10 @@ class ClientHandler : public CefClient,
       CefRefPtr<CefBrowser> browser,
       CefRefPtr<CefFrame> frame,
       CefRefPtr<CefRequest> request) OVERRIDE;
+  virtual bool OnQuotaRequest(CefRefPtr<CefBrowser> browser,
+                              const CefString& origin_url,
+                              int64 new_size,
+                              CefRefPtr<CefQuotaCallback> callback) OVERRIDE;
   virtual void OnProtocolExecution(CefRefPtr<CefBrowser> browser,
                                    const CefString& url,
                                    bool& allow_os_execution) OVERRIDE;