Prefix all IPC messages used by src\chrome with Chrome. For e.g ChromeViewMsg_, ChromeViewHostMsg...

chrome/browser/history/history_tab_helper.cc

 // 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.
 
 #include "chrome/browser/history/history_tab_helper.h"
 
 #include "chrome/browser/history/history.h"
 #include "chrome/browser/history/top_sites.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/render_messages.h"
@@ skipping 49 matching lines @@
     add_page_args->url = virtual_url;
     if (!add_page_args->redirects.empty())
       add_page_args->redirects.back() = virtual_url;
   }
   return add_page_args;
 }
 
 bool HistoryTabHelper::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(HistoryTabHelper, message)
-    IPC_MESSAGE_HANDLER(ViewHostMsg_PageContents, OnPageContents)
-    IPC_MESSAGE_HANDLER(ViewHostMsg_Thumbnail, OnThumbnail)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_PageContents, OnPageContents)
+    IPC_MESSAGE_HANDLER(ChromeViewHostMsg_Thumbnail, OnThumbnail)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void HistoryTabHelper::DidNavigateMainFramePostCommit(
     const content::LoadCommittedDetails& details,
     const ViewHostMsg_FrameNavigate_Params& params) {
   // Allow the new page to set the title again.
@@ skipping 75 matching lines @@
 }
 
 HistoryService* HistoryTabHelper::GetHistoryService() {
   Profile* profile =
       Profile::FromBrowserContext(tab_contents()->browser_context());
   if (profile->IsOffTheRecord())
     return NULL;
 
   return profile->GetHistoryService(Profile::IMPLICIT_ACCESS);
 }