Adds support for calling postMessage on a frame living in a different renderer.

content/public/browser/render_view_host_delegate.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_RENDER_VIEW_HOST_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_VIEW_HOST_DELEGATE_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 12 matching lines @@
 #include "webkit/glue/window_open_disposition.h"
 
 class GURL;
 class SkBitmap;
 class WebContentsImpl;
 class WebKeyboardEvent;
 struct NativeWebKeyboardEvent;
 struct ViewHostMsg_CreateWindow_Params;
 struct ViewHostMsg_DidFailProvisionalLoadWithError_Params;
 struct ViewHostMsg_FrameNavigate_Params;
+struct ViewHostMsg_PostMessage_Params;
 struct WebDropData;
 struct WebMenuItem;
 struct WebPreferences;
 
 namespace base {
 class ListValue;
 class TimeTicks;
 }
 
 namespace gfx {
@@ skipping 277 matching lines @@
   virtual void RequestTransferURL(
       const GURL& url,
       const content::Referrer& referrer,
       WindowOpenDisposition disposition,
       int64 source_frame_id,
       const content::GlobalRequestID& old_request_id) {}
 
   // The page wants to close the active view in this tab.
   virtual void RouteCloseEvent(RenderViewHost* rvh) {}
 
+  // The page wants to post a message to the active view in this tab.
+  virtual void RouteMessageEvent(
+      RenderViewHost* rvh,
+      const ViewHostMsg_PostMessage_Params& params) {}
+
   // A javascript message, confirmation or prompt should be shown.
   virtual void RunJavaScriptMessage(RenderViewHost* rvh,
                                     const string16& message,
                                     const string16& default_prompt,
                                     const GURL& frame_url,
                                     ui::JavascriptMessageType type,
                                     IPC::Message* reply_msg,
                                     bool* did_suppress_message) {}
 
   virtual void RunBeforeUnloadConfirm(RenderViewHost* rvh,
@@ skipping 92 matching lines @@
   // Notification that the view has lost the mouse lock.
   virtual void LostMouseLock() {}
 
  protected:
   virtual ~RenderViewHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_VIEW_HOST_DELEGATE_H_