Fix "Search Google for this image" after r268939

chrome/browser/ui/tab_contents/core_tab_helper.cc

 // 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.
 
 #include "chrome/browser/ui/tab_contents/core_tab_helper.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 170 matching lines @@
 }
 
 void CoreTabHelper::BeforeUnloadFired(const base::TimeTicks& proceed_time) {
   before_unload_end_time_ = proceed_time;
 }
 
 void CoreTabHelper::BeforeUnloadDialogCancelled() {
   OnCloseCanceled();
 }
 
-bool CoreTabHelper::OnMessageReceived(const IPC::Message& message) {
+bool CoreTabHelper::OnMessageReceived(
+    const IPC::Message& message,
+    content::RenderFrameHost* render_frame_host) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(CoreTabHelper, message)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_RequestThumbnailForContextNode_ACK,
                         OnRequestThumbnailForContextNodeACK)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 // Handles the image thumbnail for the context node, composes a image search
@@ skipping 46 matching lines @@
     DCHECK(!content_type.empty());
     open_url_params.uses_post = true;
     open_url_params.browser_initiated_post_data =
         base::RefCountedString::TakeString(post_data);
     open_url_params.extra_headers += base::StringPrintf(
         "%s: %s\r\n", net::HttpRequestHeaders::kContentType,
         content_type.c_str());
   }
   web_contents()->OpenURL(open_url_params);
 }