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

chrome/browser/renderer_host/render_view_host_delegate.h

Index: chrome/browser/renderer_host/render_view_host_delegate.h
diff --git a/chrome/browser/renderer_host/render_view_host_delegate.h b/chrome/browser/renderer_host/render_view_host_delegate.h
index 2a6f74559c03fda43e6d454fd1a240eaa5a69b96..e1f1c0e8737237646fa043b0340a6ef7e6ab140c 100644
--- a/chrome/browser/renderer_host/render_view_host_delegate.h
+++ b/chrome/browser/renderer_host/render_view_host_delegate.h
@@ -10,6 +10,7 @@
 #include <vector>
 
 #include "base/basictypes.h"
+#include "base/process_util.h"
 #include "base/ref_counted.h"
 #include "base/string16.h"
 #include "chrome/common/content_settings_types.h"
@@ -690,7 +691,9 @@ class RenderViewHostDelegate {
   virtual void RenderViewReady(RenderViewHost* render_view_host) {}
 
   // The RenderView died somehow (crashed or was killed by the user).
-  virtual void RenderViewGone(RenderViewHost* render_view_host) {}
+  virtual void RenderViewGone(RenderViewHost* render_view_host,
+                              base::TerminationStatus status,
+                              int error_code) {}
 
   // The RenderView is going to be deleted. This is called when each
   // RenderView is going to be destroyed