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

chrome/browser/renderer_host/render_view_host.h

Index: chrome/browser/renderer_host/render_view_host.h
diff --git a/chrome/browser/renderer_host/render_view_host.h b/chrome/browser/renderer_host/render_view_host.h
index 077f7ea985d3ff5db41d336c2dfe9ca59676e35d..d9c12cc1e3a365b7610be4492b4aa88e4a1f8f53 100644
--- a/chrome/browser/renderer_host/render_view_host.h
+++ b/chrome/browser/renderer_host/render_view_host.h
@@ -10,6 +10,7 @@
 #include <vector>
 
 #include "base/scoped_ptr.h"
+#include "base/process_util.h"
 #include "chrome/browser/find_bar_controller.h"
 #include "chrome/browser/renderer_host/render_widget_host.h"
 #include "chrome/common/content_settings_types.h"
@@ -126,6 +127,10 @@ class RenderViewHost : public RenderWidgetHost {
   // because it is overridden by TestRenderViewHost.
   virtual bool IsRenderViewLive() const;
 
+  base::TerminationStatus render_view_termination_status() const {
+    return render_view_termination_status_;
+  }
+
   // Send the renderer process the current preferences supplied by the
   // RenderViewHostDelegate.
   void SyncRendererPrefs();
@@ -549,7 +554,7 @@ class RenderViewHost : public RenderWidgetHost {
   void OnMsgShowFullscreenWidget(int route_id);
   void OnMsgRunModal(IPC::Message* reply_msg);
   void OnMsgRenderViewReady();
-  void OnMsgRenderViewGone();
+  void OnMsgRenderViewGone(int status, int error_code);
   void OnMsgNavigate(const IPC::Message& msg);
   void OnMsgUpdateState(int32 page_id,
                         const std::string& state);
@@ -820,6 +825,9 @@ class RenderViewHost : public RenderWidgetHost {
   // The most recently received accessibility tree - for unit testing only.
   webkit_glue::WebAccessibility accessibility_tree_;
 
+  // The termination status of the last render view that terminated.
+  base::TerminationStatus render_view_termination_status_;
+
   DISALLOW_COPY_AND_ASSIGN(RenderViewHost);
 };