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

content/browser/push_messaging_message_filter.cc

 // Copyright 2014 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 "content/browser/push_messaging_message_filter.h"
 
 #include <string>
 
 #include "content/common/push_messaging_messages.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace content {
 
 PushMessagingMessageFilter::PushMessagingMessageFilter()
     : BrowserMessageFilter(PushMessagingMsgStart) {}
 
 PushMessagingMessageFilter::~PushMessagingMessageFilter() {}
 
-bool PushMessagingMessageFilter::OnMessageReceived(const IPC::Message& message,
-                                                   bool* message_was_ok) {
+bool PushMessagingMessageFilter::OnMessageReceived(
+    const IPC::Message& message) {
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(PushMessagingMessageFilter, message, *message_was_ok)
+  IPC_BEGIN_MESSAGE_MAP(PushMessagingMessageFilter, message)
     IPC_MESSAGE_HANDLER(PushMessagingHostMsg_Register, OnRegister)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void PushMessagingMessageFilter::OnRegister(int routing_id,
                                             int callbacks_id,
                                             const std::string& sender_id) {
   // TODO(mvanouwerkerk): Really implement, the below simply returns an error.
@@ skipping 21 matching lines @@
     Send(new PushMessagingMsg_RegisterSuccess(routing_id,
                                               callbacks_id,
                                               endpoint,
                                               registration_id));
   } else {
     Send(new PushMessagingMsg_RegisterError(routing_id, callbacks_id));
   }
 }
 
 }  // namespace content