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

chrome/browser/gpu_process_host.cc

Index: chrome/browser/gpu_process_host.cc
diff --git a/chrome/browser/gpu_process_host.cc b/chrome/browser/gpu_process_host.cc
index 8626fde855f29ac5496fb762a194e3a53adfdcde..558ac1b6a1e351e304756db212107f81e518c665 100644
--- a/chrome/browser/gpu_process_host.cc
+++ b/chrome/browser/gpu_process_host.cc
@@ -495,12 +495,12 @@ void GpuProcessHost::OnChildDied() {
   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 {