Fix NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED.

content/browser/tab_contents/interstitial_page.cc

 // Copyright (c) 2011 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.
 
 #include "content/browser/tab_contents/interstitial_page.h"
 
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
@@ skipping 263 matching lines @@
       // RenderViewHost before the resource request for the new page we are
       // navigating arrives in the ResourceDispatcherHost.  This ensures that
       // request won't be blocked if the same RenderViewHost was used for the
       // new navigation.
       Disable();
       TakeActionOnResourceDispatcher(CANCEL);
       break;
     case content::NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED:
       if (action_taken_ == NO_ACTION) {
         // The RenderViewHost is being destroyed (as part of the tab being
-        // closed), make sure we clear the blocked requests.
-        RenderViewHost* rvh = Source<RenderViewHost>(source).ptr();
+        // closed); make sure we clear the blocked requests.
+        RenderViewHost* rvh = static_cast<RenderViewHost*>(
+            Source<RenderWidgetHost>(source).ptr());
         DCHECK(rvh->process()->id() == original_child_id_ &&
                rvh->routing_id() == original_rvh_id_);
         TakeActionOnResourceDispatcher(CANCEL);
       }
       break;
     case content::NOTIFICATION_TAB_CONTENTS_DESTROYED:
     case content::NOTIFICATION_NAV_ENTRY_COMMITTED:
       if (action_taken_ == NO_ACTION) {
         // We are navigating away from the interstitial or closing a tab with an
         // interstitial.  Default to DontProceed(). We don't just call Hide as
@@ skipping 364 matching lines @@
 void InterstitialPage::InterstitialPageRVHViewDelegate::TakeFocus(
     bool reverse) {
   if (interstitial_page_->tab() && interstitial_page_->tab()->GetViewDelegate())
     interstitial_page_->tab()->GetViewDelegate()->TakeFocus(reverse);
 }
 
 void InterstitialPage::InterstitialPageRVHViewDelegate::OnFindReply(
     int request_id, int number_of_matches, const gfx::Rect& selection_rect,
     int active_match_ordinal, bool final_update) {
 }