Added code so renderer would cleanly exit.

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 91ccdfadea0d11c8cf79f532bc64548baca3448e..6c137e5068521527868abb98d0484eef8c5978a6 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -38,6 +38,7 @@
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/tracked_objects.h"
+#include "chrome/common/chrome_switches.h"
 #include "content/browser/appcache/appcache_dispatcher_host.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/browser_main.h"
@@ -639,6 +640,10 @@ void RenderProcessHostImpl::AppendRendererCommandLine(
   GpuDataManagerImpl* gpu_data_manager = GpuDataManagerImpl::GetInstance();
   DCHECK(gpu_data_manager);
   gpu_data_manager->AppendRendererCommandLine(command_line);
+
+  if (CommandLine::ForCurrentProcess()->
+      HasSwitch(switches::kEnableRendererCleanExit))
+    command_line->AppendSwitch(switches::kEnableRendererCleanExit);
 }
 
 void RenderProcessHostImpl::PropagateBrowserCommandLineToRenderer(