This adds some plumbing for propagating the status and error code of a

chrome/browser/tab_contents/interstitial_page.h

 // Copyright (c) 2009 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_TAB_CONTENTS_INTERSTITIAL_PAGE_H_
 #define CHROME_BROWSER_TAB_CONTENTS_INTERSTITIAL_PAGE_H_
 #pragma once
 
 #include <map>
 #include <string>
 
+#include "base/process_util.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/renderer_host/render_view_host_delegate.h"
 #include "chrome/common/notification_observer.h"
 #include "chrome/common/notification_registrar.h"
 #include "chrome/common/renderer_preferences.h"
 #include "gfx/size.h"
 #include "googleurl/src/gurl.h"
 
 class NavigationEntry;
 class TabContents;
@@ skipping 91 matching lines @@
 
  protected:
   // NotificationObserver method:
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
   // RenderViewHostDelegate implementation:
   virtual View* GetViewDelegate();
   virtual const GURL& GetURL() const;
-  virtual void RenderViewGone(RenderViewHost* render_view_host);
+  virtual void RenderViewGone(RenderViewHost* render_view_host,
+                              base::TerminationStatus status,
+                              int error_code);
   virtual void DidNavigate(RenderViewHost* render_view_host,
                            const ViewHostMsg_FrameNavigate_Params& params);
   virtual void UpdateTitle(RenderViewHost* render_view_host,
                            int32 page_id,
                            const std::wstring& title);
   virtual void DomOperationResponse(const std::string& json_string,
                                     int automation_id);
   virtual RendererPreferences GetRendererPrefs(Profile* profile) const {
     return renderer_preferences_;
   }
@@ skipping 99 matching lines @@
   typedef std::map<TabContents*, InterstitialPage*> InterstitialPageMap;
   static InterstitialPageMap* tab_to_interstitial_page_;
 
   // Settings passed to the renderer.
   RendererPreferences renderer_preferences_;
 
   DISALLOW_COPY_AND_ASSIGN(InterstitialPage);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_INTERSTITIAL_PAGE_H_