Fixed null dereference in GPU watchdog termination code....

chrome/gpu/gpu_main.cc

 // Copyright (c) 2010 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 <stdlib.h>
 
 #include "app/app_switches.h"
 #include "app/gfx/gl/gl_context.h"
 #include "app/gfx/gl/gl_implementation.h"
 #include "base/environment.h"
@@ skipping 112 matching lines @@
   // Disable the watchdog in debug builds because they tend to only be run by
   // developers who will not appreciate the watchdog killing the GPU process.
 #ifndef NDEBUG
   enable_watchdog = false;
 #endif
 
   // Start the GPU watchdog only after anything that is expected to be time
   // consuming has completed, otherwise the process is liable to be aborted.
   scoped_refptr<GpuWatchdogThread> watchdog_thread;
   if (enable_watchdog) {
-    watchdog_thread = new GpuWatchdogThread(MessageLoop::current(),
-                                            watchdog_timeout * 1000);
+    watchdog_thread = new GpuWatchdogThread(watchdog_timeout * 1000);
     watchdog_thread->Start();
   }
 
   main_message_loop.Run();
 
   if (enable_watchdog)
     watchdog_thread->Stop();
 
   return 0;
 }