Move ClosePage() from RenderViewHost to WebContents.

chrome/browser/ui/unload_controller.cc

 // Copyright (c) 2012 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/unload_controller.h"
 
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 302 matching lines @@
     // TODO(ojan): We should add a call to browser_shutdown::OnShutdownStarting
     // somewhere around here so that we have accurate measurements of shutdown
     // time.
     // TODO(ojan): We can probably fire all the unload events in parallel and
     // get a perf benefit from that in the cases where the tab hangs in it's
     // unload handler or takes a long time to page in.
     content::WebContents* web_contents = *(tabs_needing_unload_fired_.begin());
     // 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 (web_contents->GetRenderViewHost()) {
-      web_contents->GetRenderViewHost()->ClosePage();
+      web_contents->ClosePage();
     } else {
       ClearUnloadState(web_contents, true);
     }
   } else {
     NOTREACHED();
   }
 }
 
 bool UnloadController::HasCompletedUnloadProcessing() const {
   return is_attempting_to_close_browser_ &&
@@ skipping 24 matching lines @@
     } else {
       base::MessageLoop::current()->PostTask(
           FROM_HERE,
           base::Bind(&UnloadController::ProcessPendingTabs,
                      weak_factory_.GetWeakPtr()));
     }
   }
 }
 
 }  // namespace chrome