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

content/browser/message_port_message_filter.cc

 // Copyright 2013 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/message_port_message_filter.h"
 
 #include "content/browser/message_port_service.h"
 #include "content/common/message_port_messages.h"
 
 namespace content {
 
 MessagePortMessageFilter::MessagePortMessageFilter(
     const NextRoutingIDCallback& callback)
     : BrowserMessageFilter(MessagePortMsgStart),
       next_routing_id_(callback) {
 }
 
 MessagePortMessageFilter::~MessagePortMessageFilter() {
 }
 
 void MessagePortMessageFilter::OnChannelClosing() {
   MessagePortService::GetInstance()->OnMessagePortMessageFilterClosing(this);
 }
 
-bool MessagePortMessageFilter::OnMessageReceived(const IPC::Message& message,
-                                                 bool* message_was_ok) {
+bool MessagePortMessageFilter::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(MessagePortMessageFilter, message, *message_was_ok)
+  IPC_BEGIN_MESSAGE_MAP(MessagePortMessageFilter, message)
     IPC_MESSAGE_HANDLER(MessagePortHostMsg_CreateMessagePort,
                         OnCreateMessagePort)
     IPC_MESSAGE_FORWARD(MessagePortHostMsg_DestroyMessagePort,
                         MessagePortService::GetInstance(),
                         MessagePortService::Destroy)
     IPC_MESSAGE_FORWARD(MessagePortHostMsg_Entangle,
                         MessagePortService::GetInstance(),
                         MessagePortService::Entangle)
     IPC_MESSAGE_FORWARD(MessagePortHostMsg_PostMessage,
                         MessagePortService::GetInstance(),
                         MessagePortService::PostMessage)
     IPC_MESSAGE_FORWARD(MessagePortHostMsg_QueueMessages,
                         MessagePortService::GetInstance(),
                         MessagePortService::QueueMessages)
     IPC_MESSAGE_FORWARD(MessagePortHostMsg_SendQueuedMessages,
                         MessagePortService::GetInstance(),
                         MessagePortService::SendQueuedMessages)
     IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP_EX()
+  IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void MessagePortMessageFilter::OnDestruct() const {
   BrowserThread::DeleteOnIOThread::Destruct(this);
 }
 
 int MessagePortMessageFilter::GetNextRoutingID() {
   return next_routing_id_.Run();
@@ skipping 15 matching lines @@
   }
 }
 
 void MessagePortMessageFilter::OnCreateMessagePort(int *route_id,
                                                    int* message_port_id) {
   *route_id = next_routing_id_.Run();
   MessagePortService::GetInstance()->Create(*route_id, this, message_port_id);
 }
 
 }  // namespace content