This adds some plumbing for propagating the reason for a renderer's death

chrome/browser/gpu_process_host.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 "chrome/browser/gpu_process_host.h"
 
 #include "app/app_switches.h"
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/thread.h"
@@ skipping 445 matching lines @@
 }
 
 void GpuProcessHost::OnChildDied() {
   // Located in OnChildDied because OnProcessCrashed suffers from a race
   // condition on Linux. The GPU process will only die if it crashes.
   UMA_HISTOGRAM_ENUMERATION("GPU.GPUProcessLifetimeEvents",
                             kCrashed, kGPUProcessLifetimeEvent_Max);
   BrowserChildProcessHost::OnChildDied();
 }
 
-void GpuProcessHost::OnProcessCrashed() {
+void GpuProcessHost::OnProcessCrashed(int exit_code) {
   // TODO(alokp): Update gpu process crash rate.
-  BrowserChildProcessHost::OnProcessCrashed();
+  BrowserChildProcessHost::OnProcessCrashed(exit_code);
 }
 
 bool GpuProcessHost::CanLaunchGpuProcess() const {
   // TODO(alokp): Answer based on crash rate.
   return true;
 }
 
 bool GpuProcessHost::LaunchGpuProcess() {
   const CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
   CommandLine::StringType gpu_launcher =
@@ skipping 31 matching lines @@
 #elif defined(OS_POSIX)
       false,  // Never use the zygote (GPU plugin can't be sandboxed).
       base::environment_vector(),
 #endif
       cmd_line);
 
   UMA_HISTOGRAM_ENUMERATION("GPU.GPUProcessLifetimeEvents",
                             kLaunched, kGPUProcessLifetimeEvent_Max);
   return true;
 }
-