| // 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); |
| virtual ~DelegatedFrameEvictor(); |
| |
| void SwappedFrame(bool visible); |
| void DiscardedFrame(); |
| void SetVisible(bool visible); |
| void LockFrame(); |
| void UnlockFrame(); |
| bool HasFrame() { return has_frame_; } |
| |
| private: |
| // RendererFrameManagerClient implementation. |
| virtual void EvictCurrentFrame() OVERRIDE; |
| |
| DelegatedFrameEvictorClient* client_; |
| bool has_frame_; |
| |
| DISALLOW_COPY_AND_ASSIGN(DelegatedFrameEvictor); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_RENDERER_HOST_DELEGATED_FRAME_EVICTOR_H_ |