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

chrome/browser/spellchecker/spellcheck_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/spellchecker/spellcheck_message_filter.h"
 
 #include <algorithm>
 #include <functional>
 
 #include "base/bind.h"
@@ skipping 25 matching lines @@
   if (message.type() == SpellCheckHostMsg_RequestDictionary::ID ||
       message.type() == SpellCheckHostMsg_NotifyChecked::ID ||
       message.type() == SpellCheckHostMsg_RespondDocumentMarkers::ID)
     *thread = BrowserThread::UI;
 #if !defined(OS_MACOSX)
   if (message.type() == SpellCheckHostMsg_CallSpellingService::ID)
     *thread = BrowserThread::UI;
 #endif
 }
 
-bool SpellCheckMessageFilter::OnMessageReceived(const IPC::Message& message,
-                                                bool* message_was_ok) {
+bool SpellCheckMessageFilter::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(SpellCheckMessageFilter, message, *message_was_ok)
+  IPC_BEGIN_MESSAGE_MAP(SpellCheckMessageFilter, message)
     IPC_MESSAGE_HANDLER(SpellCheckHostMsg_RequestDictionary,
                         OnSpellCheckerRequestDictionary)
     IPC_MESSAGE_HANDLER(SpellCheckHostMsg_NotifyChecked,
                         OnNotifyChecked)
     IPC_MESSAGE_HANDLER(SpellCheckHostMsg_RespondDocumentMarkers,
                         OnRespondDocumentMarkers)
 #if !defined(OS_MACOSX)
     IPC_MESSAGE_HANDLER(SpellCheckHostMsg_CallSpellingService,
                         OnCallSpellingService)
 #endif
@@ skipping 122 matching lines @@
                base::Unretained(this),
                route_id,
                identifier,
                markers));
 }
 #endif
 
 SpellcheckService* SpellCheckMessageFilter::GetSpellcheckService() const {
   return SpellcheckServiceFactory::GetForRenderProcessId(render_process_id_);
 }