1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef CHROME_BROWSER_UI_SAD_TAB_HELPER_H_ 6#define CHROME_BROWSER_UI_SAD_TAB_HELPER_H_ 7 8#include "base/basictypes.h" 9#include "base/compiler_specific.h" 10#include "base/memory/scoped_ptr.h" 11#include "content/public/browser/web_contents_observer.h" 12#include "content/public/browser/web_contents_user_data.h" 13 14namespace chrome { 15class SadTab; 16} 17 18// Per-tab class to manage sad tab views. 19class SadTabHelper : public content::WebContentsObserver, 20 public content::WebContentsUserData<SadTabHelper> { 21 public: 22 virtual ~SadTabHelper(); 23 24 chrome::SadTab* sad_tab() { return sad_tab_.get(); } 25 26 private: 27 friend class content::WebContentsUserData<SadTabHelper>; 28 29 explicit SadTabHelper(content::WebContents* web_contents); 30 31 void InstallSadTab(base::TerminationStatus status); 32 33 // Overridden from content::WebContentsObserver: 34 virtual void RenderViewReady() OVERRIDE; 35 virtual void RenderProcessGone(base::TerminationStatus status) OVERRIDE; 36 37 scoped_ptr<chrome::SadTab> sad_tab_; 38 39 DISALLOW_COPY_AND_ASSIGN(SadTabHelper); 40}; 41 42#endif // CHROME_BROWSER_UI_SAD_TAB_HELPER_H_ 43