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

chrome/browser/renderer_host/render_widget_host.h

Index: chrome/browser/renderer_host/render_widget_host.h
diff --git a/chrome/browser/renderer_host/render_widget_host.h b/chrome/browser/renderer_host/render_widget_host.h
index 45b114b8d5bbcc09c92dfdcb6c97773bed6bbc15..1bde885e379b27aa82b8043ded4ec28c2f595533 100644
--- a/chrome/browser/renderer_host/render_widget_host.h
+++ b/chrome/browser/renderer_host/render_widget_host.h
@@ -12,6 +12,7 @@
 
 #include "app/surface/transport_dib.h"
 #include "base/gtest_prod_util.h"
+#include "base/process_util.h"
 #include "base/scoped_ptr.h"
 #include "base/string16.h"
 #include "base/timer.h"
@@ -415,7 +416,7 @@ class RenderWidgetHost : public IPC::Channel::Listener,
   // Called when we receive a notification indicating that the renderer
   // process has gone. This will reset our state so that our state will be
   // consistent if a new renderer is created.
-  void RendererExited();
+  void RendererExited(base::TerminationStatus status, int exit_code);
 
   // Retrieves an id the renderer can use to refer to its view.
   // This is used for various IPC messages, including plugins.
@@ -475,7 +476,7 @@ class RenderWidgetHost : public IPC::Channel::Listener,
 
   // IPC message handlers
   void OnMsgRenderViewReady();
-  void OnMsgRenderViewGone();
+  void OnMsgRenderViewGone(int status, int error_code);
   void OnMsgClose();
   void OnMsgRequestMove(const gfx::Rect& pos);
   void OnMsgPaintAtSizeAck(int tag, const gfx::Size& size);