Remove IPC_BEGIN_MESSAGE_MAP_EX macro since r270839 made all bad IPCs kill their child processes.

chrome/browser/prerender/prerender_message_filter.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/prerender/prerender_message_filter.h"
 
 #include "base/bind.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/prerender/prerender_link_manager.h"
 #include "chrome/browser/prerender/prerender_link_manager_factory.h"
@@ skipping 23 matching lines @@
 PrerenderMessageFilter::PrerenderMessageFilter(int render_process_id,
                                                Profile* profile)
     : BrowserMessageFilter(PrerenderMsgStart),
       render_process_id_(render_process_id),
       profile_(profile) {
 }
 
 PrerenderMessageFilter::~PrerenderMessageFilter() {
 }
 
-bool PrerenderMessageFilter::OnMessageReceived(const IPC::Message& message,
-                                               bool* message_was_ok) {
+bool PrerenderMessageFilter::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(PrerenderMessageFilter, message, *message_was_ok)
+  IPC_BEGIN_MESSAGE_MAP(PrerenderMessageFilter, message)
     IPC_MESSAGE_HANDLER(PrerenderHostMsg_AddLinkRelPrerender, OnAddPrerender)
     IPC_MESSAGE_HANDLER(
         PrerenderHostMsg_CancelLinkRelPrerender, OnCancelPrerender)
     IPC_MESSAGE_HANDLER(
         PrerenderHostMsg_AbandonLinkRelPrerender, OnAbandonPrerender)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
@@ skipping 45 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   PrerenderLinkManager* prerender_link_manager =
       PrerenderLinkManagerFactory::GetForProfile(profile_);
   if (!prerender_link_manager)
     return;
   prerender_link_manager->OnAbandonPrerender(render_process_id_, prerender_id);
 }
 
 }  // namespace prerender