| // 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_FRAME_MEMORY_MANAGER_H_ |
| #define CONTENT_BROWSER_RENDERER_HOST_FRAME_MEMORY_MANAGER_H_ |
| |
| #include <list> |
| #include <set> |
| |
| #include "base/basictypes.h" |
| |
| template <typename T> struct DefaultSingletonTraits; |
| |
| namespace content { |
| |
| class FrameContainer { |
| public: |
| virtual void ReleaseCurrentFrame() = 0; |
| }; |
| |
| class FrameMemoryManager { |
| public: |
| static FrameMemoryManager* GetInstance(); |
| |
| void AddFrame(FrameContainer*, bool visible); |
| void RemoveFrame(FrameContainer*); |
| void SetFrameVisibility(FrameContainer*, bool visible); |
| |
| private: |
| FrameMemoryManager(); |
| ~FrameMemoryManager(); |
| void CullHiddenFrames(); |
| friend struct DefaultSingletonTraits<FrameMemoryManager>; |
| |
| std::set<FrameContainer*> visible_frames_; |
| std::list<FrameContainer*> hidden_frames_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FrameMemoryManager); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_RENDERER_HOST_FRAME_MEMORY_MANAGER_H_ |