Fix for WebView accessible resources.

extensions/renderer/extension_frame_helper.h

 // Copyright 2013 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.
 
 #ifndef EXTENSIONS_RENDERER_EXTENSION_FRAME_HELPER_H_
 #define EXTENSIONS_RENDERER_EXTENSION_FRAME_HELPER_H_
 
 #include <vector>
 
 #include "content/public/common/console_message_level.h"
@@ skipping 35 matching lines @@
   // isn't one in this process.
   static content::RenderFrame* GetBackgroundPageFrame(
       const std::string& extension_id);
 
   // Returns true if the given |context| is for any frame in the extension's
   // event page.
   // TODO(devlin): This isn't really used properly, and should probably be
   // deleted.
   static bool IsContextForEventPage(const ScriptContext* context);
 
+  // If this renderer process is a WebView guest process, the WebView parition
+  // ID is returned. Otherwise, an empty string is returned.
+  static std::string GetWebViewPartitionID();

[not at google - send to devlin, 2015/08/31 18:31:44]

unused?

[paulmeyer, 2015/08/31 21:40:08]

Yes. Removed.

+
   ViewType view_type() const { return view_type_; }
   int tab_id() const { return tab_id_; }
   int browser_window_id() const { return browser_window_id_; }
   bool did_create_current_document_element() const {
     return did_create_current_document_element_;
   }
 
  private:
   // RenderFrameObserver implementation.
   void DidCreateDocumentElement() override;
@@ skipping 12 matching lines @@
   void OnExtensionDispatchOnConnect(
       int target_port_id,
       const std::string& channel_name,
       const ExtensionMsg_TabConnectionInfo& source,
       const ExtensionMsg_ExternalConnectionInfo& info,
       const std::string& tls_channel_id);
   void OnExtensionDeliverMessage(int target_port_id,
                                  const Message& message);
   void OnExtensionDispatchOnDisconnect(int port_id,
                                        const std::string& error_message);
+  void OnExtensionSetWebViewPartitionID(const std::string& parition_id);
   void OnExtensionSetTabId(int tab_id);
   void OnUpdateBrowserWindowId(int browser_window_id);
   void OnNotifyRendererViewType(ViewType view_type);
   void OnExtensionResponse(int request_id,
                            bool success,
                            const base::ListValue& response,
                            const std::string& error);
   void OnExtensionMessageInvoke(const std::string& extension_id,
                                 const std::string& module_name,
                                 const std::string& function_name,
@@ skipping 13 matching lines @@
 
   // Whether or not the current document element has been created.
   bool did_create_current_document_element_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionFrameHelper);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_EXTENSION_FRAME_HELPER_H_