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 "app/resource_bundle.h"
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
@@ skipping 477 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) {
   if (++g_gpu_crash_count >= kGpuMaxCrashCount) {
     // The gpu process is too unstable to use. Disable it for current session.
     RenderViewHostDelegateHelper::set_gpu_enabled(false);
   }
-  BrowserChildProcessHost::OnProcessCrashed();
+  BrowserChildProcessHost::OnProcessCrashed(exit_code);
 }
 
 bool GpuProcessHost::CanLaunchGpuProcess() const {
   return RenderViewHostDelegateHelper::gpu_enabled();
 }
 
 bool GpuProcessHost::LaunchGpuProcess() {
   const CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
   CommandLine::StringType gpu_launcher =
       browser_command_line.GetSwitchValueNative(switches::kGpuLauncher);
@@ skipping 53 matching lines @@
   const CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
   if (browser_command_line.HasSwitch(switches::kIgnoreGpuBlacklist) ||
       blacklist->LoadGpuBlacklist(gpu_blacklist_json.as_string(), true)) {
     gpu_blacklist_.reset(blacklist);
     return true;
   }
   delete blacklist;
   return false;
 }