Move extension messages to their own file and add a RenderViewObserver to start moving the extens...

content/browser/renderer_host/render_view_host_delegate.h

 // Copyright (c) 2011 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 CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 27 matching lines @@
 class Profile;
 struct RendererPreferences;
 class RenderProcessHost;
 class RenderViewHost;
 class ResourceRedirectDetails;
 class ResourceRequestDetails;
 class SkBitmap;
 class SSLClientAuthHandler;
 class SSLAddCertHandler;
 class TabContents;
+struct ExtensionHostMsg_DomMessage_Params;
 struct ViewHostMsg_CreateWindow_Params;
-struct ViewHostMsg_DomMessage_Params;
 struct ViewHostMsg_FrameNavigate_Params;
 struct WebApplicationInfo;
 struct WebDropData;
 struct WebMenuItem;
 class WebKeyboardEvent;
 struct WebPreferences;
 
 namespace base {
 class WaitableEvent;
 }
@@ skipping 425 matching lines @@
                               WindowOpenDisposition disposition) {}
 
   // A DOM automation operation completed. The result of the operation is
   // expressed in a json string.
   virtual void DomOperationResponse(const std::string& json_string,
                                     int automation_id) {}
 
   // A message was sent from HTML-based UI.
   // By default we ignore such messages.
   virtual void ProcessWebUIMessage(
-      const ViewHostMsg_DomMessage_Params& params) {}
+      const ExtensionHostMsg_DomMessage_Params& params) {}
 
   // A message for external host. By default we ignore such messages.
   // |receiver| can be a receiving script and |message| is any
   // arbitrary string that makes sense to the receiver.
   virtual void ProcessExternalHostMessage(const std::string& message,
                                           const std::string& origin,
                                           const std::string& target) {}
 
   // A javascript message, confirmation or prompt should be shown.
   virtual void RunJavaScriptMessage(const std::wstring& message,
@@ skipping 59 matching lines @@
                                 bool remember) {}
 
   // Notification that a worker process has crashed.
   void WorkerCrashed() {}
 
  protected:
   virtual ~RenderViewHostDelegate() {}
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_