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

content/common/gpu/gpu_channel_manager.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 "content/common/gpu/gpu_channel_manager.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "content/common/gpu/gpu_channel.h"
 #include "content/common/gpu/gpu_memory_manager.h"
@@ skipping 84 matching lines @@
 
 GpuChannel* GpuChannelManager::LookupChannel(int32 client_id) {
   GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
   if (iter == gpu_channels_.end())
     return NULL;
   else
     return iter->second.get();
 }
 
 bool GpuChannelManager::OnMessageReceived(const IPC::Message& msg) {
-  bool msg_is_ok = true;
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(GpuChannelManager, msg, msg_is_ok)
+  IPC_BEGIN_MESSAGE_MAP(GpuChannelManager, msg)
     IPC_MESSAGE_HANDLER(GpuMsg_EstablishChannel, OnEstablishChannel)
     IPC_MESSAGE_HANDLER(GpuMsg_CloseChannel, OnCloseChannel)
     IPC_MESSAGE_HANDLER(GpuMsg_CreateViewCommandBuffer,
                         OnCreateViewCommandBuffer)
     IPC_MESSAGE_HANDLER(GpuMsg_CreateImage, OnCreateImage)
     IPC_MESSAGE_HANDLER(GpuMsg_DeleteImage, OnDeleteImage)
     IPC_MESSAGE_HANDLER(GpuMsg_LoadedShader, OnLoadedShader)
     IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP_EX()
+  IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 bool GpuChannelManager::Send(IPC::Message* msg) { return router_->Send(msg); }
 
 void GpuChannelManager::OnEstablishChannel(int client_id, bool share_context) {
   IPC::ChannelHandle channel_handle;
 
   gfx::GLShareGroup* share_group = NULL;
   gpu::gles2::MailboxManager* mailbox_manager = NULL;
@@ skipping 173 matching lines @@
 
 gfx::GLSurface* GpuChannelManager::GetDefaultOffscreenSurface() {
   if (!default_offscreen_surface_.get()) {
     default_offscreen_surface_ =
         gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size(1, 1));
   }
   return default_offscreen_surface_.get();
 }
 
 }  // namespace content