blob: 9e9f68a61add27bf05be4936c4048aec7dafff4b [file] [log] [blame]
// 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 CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_EVICTOR_H_
#define CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_EVICTOR_H_
#include "content/browser/renderer_host/renderer_frame_manager.h"
#include "content/common/content_export.h"
namespace content {
class CONTENT_EXPORT DelegatedFrameEvictorClient {
public:
virtual ~DelegatedFrameEvictorClient() {}
virtual void EvictDelegatedFrame() = 0;
};
class CONTENT_EXPORT DelegatedFrameEvictor : public RendererFrameManagerClient {
public:
// |client| must outlive |this|.
explicit DelegatedFrameEvictor(DelegatedFrameEvictorClient* client);
~DelegatedFrameEvictor() override;
void SwappedFrame(bool visible);
void DiscardedFrame();
void SetVisible(bool visible);
void LockFrame();
void UnlockFrame();
bool HasFrame() { return has_frame_; }
private:
// RendererFrameManagerClient implementation.
void EvictCurrentFrame() override;
DelegatedFrameEvictorClient* client_;
bool has_frame_;
bool visible_;
DISALLOW_COPY_AND_ASSIGN(DelegatedFrameEvictor);
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_EVICTOR_H_