Fix race condition in utility process clients

content/browser/gpu/gpu_process_host.h

 // 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.
 
 #ifndef CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_
 #define CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_
 #pragma once
 
 #include <map>
 #include <queue>
@@ skipping 79 matching lines @@
 
   bool Init();
 
   // Post an IPC message to the UI shim's message handler on the UI thread.
   void RouteOnUIThread(const IPC::Message& message);
 
   // BrowserChildProcessHostDelegate implementation.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
   virtual void OnProcessLaunched() OVERRIDE;
-  virtual void OnProcessCrashed(int exit_code) OVERRIDE;
+  virtual void OnProcessCrashedOrWasKilled(int exit_code) OVERRIDE;
 
   // Message handlers.
   void OnChannelEstablished(const IPC::ChannelHandle& channel_handle);
   void OnCommandBufferCreated(const int32 route_id);
   void OnDestroyCommandBuffer(int32 surface_id);
 
   bool LaunchGpuProcess(const std::string& channel_id);
 
   void SendOutstandingReplies();
   void EstablishChannelError(
@@ skipping 45 matching lines @@
   // browser session. It does not change the acceleration settings for
   // existing tabs, just the future ones.
   CONTENT_EXPORT static bool gpu_enabled_;
 
   scoped_ptr<BrowserChildProcessHostImpl> process_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuProcessHost);
 };
 
 #endif  // CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_