Move ClosePage() from RenderViewHost to WebContents.

chrome/browser/ui/fast_unload_controller.cc

 // Copyright 2013 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 "chrome/browser/ui/fast_unload_controller.h"
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/devtools/devtools_window.h"
@@ skipping 404 matching lines @@
       WebContentsSet::iterator current = it++;
       content::WebContents* contents = *current;
       tabs_needing_unload_.erase(current);
       // Null check render_view_host here as this gets called on a PostTask
       // and the tab's render_view_host may have been nulled out.
       if (contents->GetRenderViewHost()) {
         CoreTabHelper* core_tab_helper =
             CoreTabHelper::FromWebContents(contents);
         core_tab_helper->OnUnloadStarted();
         DetachWebContents(contents);
-        contents->GetRenderViewHost()->ClosePage();
+        contents->ClosePage();
       }
     }
 
     // Get the browser hidden.
     if (browser_->tab_strip_model()->empty()) {
       browser_->TabStripEmpty();
     } else {
       browser_->tab_strip_model()->CloseAllTabs();  // tabs not needing unload
     }
     return;
@@ skipping 37 matching lines @@
 }
 
 void FastUnloadController::PostTaskForProcessPendingTabs() {
   base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&FastUnloadController::ProcessPendingTabs,
                  weak_factory_.GetWeakPtr()));
 }
 
 }  // namespace chrome