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// Copyright 2014 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_UI_VIEWS_FRAME_WEB_CONTENTS_CLOSE_HANDLER_DELEGATE_H_
#define CHROME_BROWSER_UI_VIEWS_FRAME_WEB_CONTENTS_CLOSE_HANDLER_DELEGATE_H_
#include "base/memory/scoped_ptr.h"
namespace ui {
class LayerTreeOwner;
}
// WebContentsCloseHandler delegate.
class WebContentsCloseHandlerDelegate {
public:
// Invoked to clone the layers of the WebContents. Should do nothing if there
// is already a clone (eg CloneWebContentsLayer() has been invoked without a
// DestroyClonedLayer()) or no WebContents. It is expected that when this is
// invoked the cloned layer tree is drawn on top of the existing WebContents.
virtual void CloneWebContentsLayer() = 0;
// Invoked to destroy the cloned layer tree. This may be invoked when there is
// no cloned layer tree.
virtual void DestroyClonedLayer() = 0;
protected:
virtual ~WebContentsCloseHandlerDelegate() {}
};
#endif // CHROME_BROWSER_UI_VIEWS_FRAME_WEB_CONTENTS_CLOSE_HANDLER_DELEGATE_H_
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