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

chrome/browser/renderer_host/render_view_host_delegate.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #pragma once
 
 #include <string>
 #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"
 #include "chrome/common/dom_storage_common.h"
 #include "chrome/common/translate_errors.h"
 #include "chrome/common/view_types.h"
 #include "chrome/common/window_container_type.h"
 #include "net/base/load_states.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebDragOperation.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebPopupType.h"
@@ skipping 681 matching lines @@
 
   // The RenderView is being constructed (message sent to the renderer process
   // to construct a RenderView).  Now is a good time to send other setup events
   // to the RenderView.  This precedes any other commands to the RenderView.
   virtual void RenderViewCreated(RenderViewHost* render_view_host) {}
 
   // The RenderView has been constructed.
   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
   virtual void RenderViewDeleted(RenderViewHost* render_view_host) {}
 
   // The RenderView was navigated to a different page.
   virtual void DidNavigate(RenderViewHost* render_view_host,
                            const ViewHostMsg_FrameNavigate_Params& params) {}
 
   // The state for the page changed and should be updated.
@@ skipping 148 matching lines @@
                                 bool remember) {}
 
   // Update the content restrictions, i.e. disable print/copy.
   virtual void UpdateContentRestrictions(int restrictions) {}
 
  protected:
   virtual ~RenderViewHostDelegate() {}
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_