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

content/browser/renderer_host/media/device_request_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/renderer_host/media/device_request_message_filter.h"
 
 #include "content/browser/browser_main_loop.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/common/media/media_stream_messages.h"
@@ skipping 98 matching lines @@
   all_devices.insert(
       all_devices.end(), video_devices->begin(), video_devices->end());
 
   Send(new MediaStreamMsg_GetSourcesACK(request_it->request_id, all_devices));
 
   media_stream_manager_->CancelRequest(request_it->audio_devices_label);
   media_stream_manager_->CancelRequest(request_it->video_devices_label);
   requests_.erase(request_it);
 }
 
-bool DeviceRequestMessageFilter::OnMessageReceived(const IPC::Message& message,
-                                                   bool* message_was_ok) {
+bool DeviceRequestMessageFilter::OnMessageReceived(
+    const IPC::Message& message) {
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(DeviceRequestMessageFilter, message, *message_was_ok)
+  IPC_BEGIN_MESSAGE_MAP(DeviceRequestMessageFilter, message)
     IPC_MESSAGE_HANDLER(MediaStreamHostMsg_GetSources, OnGetSources)
     IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP_EX()
+  IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void DeviceRequestMessageFilter::OnChannelClosing() {
   // Since the IPC channel is gone, cancel outstanding device requests.
   for (DeviceRequestList::iterator request_it = requests_.begin();
        request_it != requests_.end(); ++request_it) {
     media_stream_manager_->CancelRequest(request_it->audio_devices_label);
     media_stream_manager_->CancelRequest(request_it->video_devices_label);
   }
@@ skipping 18 matching lines @@
   const std::string& video_label = media_stream_manager_->EnumerateDevices(
       this, -1, -1, resource_context_->GetMediaDeviceIDSalt(), -1,
       MEDIA_DEVICE_VIDEO_CAPTURE, security_origin);
   DCHECK(!video_label.empty());
 
   requests_.push_back(DeviceRequest(
       request_id, security_origin, audio_label, video_label));
 }
 
 }  // namespace content