Fix race condition in utility process clients

content/public/browser/browser_child_process_host_delegate.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_PUBLIC_BROWSER_BROWSER_CHILD_PROCESS_HOST_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_CHILD_PROCESS_HOST_DELEGATE_H_
 #pragma once
 
 #include "content/common/content_export.h"
 #include "ipc/ipc_channel.h"
 
 namespace content {
 
 // Interface that all users of BrowserChildProcessHost need to provide.
 class CONTENT_EXPORT BrowserChildProcessHostDelegate
     : public IPC::Channel::Listener {
  public:
   virtual ~BrowserChildProcessHostDelegate() {}
 
   // Delegates return true if it's ok to shut down the child process (which is
   // the default return value). The exception is if the host is in the middle of
   // sending a request to the process, in which case the other side might think
   // it's ok to shutdown, when really it's not.
   virtual bool CanShutdown();
 
   // Called when the process has been started.
   virtual void OnProcessLaunched() {}
 
-  // Called if the process crashed. |exit_code| is the status returned when the
-  // process crashed (for posix, as returned from waitpid(), for Windows, as
-  // returned from GetExitCodeProcess()).
-  virtual void OnProcessCrashed(int exit_code) {}
+  // Called if the process crashed or was killed. |exit_code| is the status
+  // returned when the process crashed (for posix, as returned from waitpid(),
+  // for Windows, as returned from GetExitCodeProcess()).
+  virtual void OnProcessCrashedOrWasKilled(int exit_code) {}
 };
 
 };  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_CHILD_PROCESS_HOST_DELEGATE_H_