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// 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.
#ifndef CHROME_RENDERER_PRERENDER_PRERENDER_MEDIA_LOAD_DEFERRER_H_
#define CHROME_RENDERER_PRERENDER_PRERENDER_MEDIA_LOAD_DEFERRER_H_
#include "base/callback.h"
#include "content/public/renderer/render_frame_observer.h"
namespace prerender {
// Defers media player loading in prerendered pages until the prerendered page
// is swapped in.
class PrerenderMediaLoadDeferrer : public content::RenderFrameObserver {
public:
// Will run |closure| to continue loading the media resource once the page is
// swapped in.
PrerenderMediaLoadDeferrer(content::RenderFrame* render_frame,
const base::Closure& closure);
virtual ~PrerenderMediaLoadDeferrer();
private:
// RenderFrameObserver method:
virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
void OnSetIsPrerendering(bool is_prerendering);
bool is_prerendering_;
base::Closure continue_loading_cb_;
DISALLOW_COPY_AND_ASSIGN(PrerenderMediaLoadDeferrer);
};
} // namespace prerender
#endif // CHROME_RENDERER_PRERENDER_PRERENDER_MEDIA_LOAD_DEFERRER_H_
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