Cleanup GpuMemoryManager and helpers.

content/common/gpu/gpu_memory_manager_client.h

-// Copyright (c) 2012 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_COMMON_GPU_GPU_MEMORY_MANAGER_CLIENT_H_
-#define CONTENT_COMMON_GPU_GPU_MEMORY_MANAGER_CLIENT_H_
-
-#include <list>
-
-#include "base/basictypes.h"
-#include "content/common/content_export.h"
-#include "gpu/command_buffer/common/gpu_memory_allocation.h"
-#include "gpu/command_buffer/service/memory_tracking.h"
-#include "ui/gfx/geometry/size.h"
-
-namespace content {
-
-class GpuMemoryManager;
-class GpuMemoryTrackingGroup;
-
-// The interface that the GPU memory manager uses to manipulate a client (to
-// send it allocation information and query its properties).
-class CONTENT_EXPORT GpuMemoryManagerClient {
- public:
-  virtual ~GpuMemoryManagerClient() {}
-
-  // Returns surface size.
-  virtual gfx::Size GetSurfaceSize() const = 0;
-
-  // Returns the memory tracker for this stub.
-  virtual gpu::gles2::MemoryTracker* GetMemoryTracker() const = 0;
-
-  virtual void SuggestHaveFrontBuffer(bool suggest_have_frontbuffer) = 0;
-
-  // Returns in bytes the total amount of GPU memory for the GPU which this
-  // context is currently rendering on. Returns false if no extension exists
-  // to get the exact amount of GPU memory.
-  virtual bool GetTotalGpuMemory(uint64* bytes) = 0;
-};
-
-// The state associated with a GPU memory manager client. This acts as the
-// handle through which the client interacts with the GPU memory manager.
-class CONTENT_EXPORT GpuMemoryManagerClientState {
- public:
-  ~GpuMemoryManagerClientState();
-  void SetVisible(bool visible);
-
- private:
-  friend class GpuMemoryManager;
-
-  GpuMemoryManagerClientState(GpuMemoryManager* memory_manager,
-                              GpuMemoryManagerClient* client,
-                              GpuMemoryTrackingGroup* tracking_group,
-                              bool has_surface,
-                              bool visible);
-
-  // The memory manager this client is hanging off of.
-  GpuMemoryManager* memory_manager_;
-
-  // The client to send allocations to.
-  GpuMemoryManagerClient* client_;
-
-  // The tracking group for this client.
-  GpuMemoryTrackingGroup* tracking_group_;
-
-  // Offscreen commandbuffers will not have a surface.
-  const bool has_surface_;
-
-  // Whether or not this client is visible.
-  bool visible_;
-
-  // If the client has a surface, then this is an iterator in the
-  // clients_visible_mru_ if this client is visible and
-  // clients_nonvisible_mru_ if this is non-visible. Otherwise this is an
-  // iterator in clients_nonsurface_.
-  std::list<GpuMemoryManagerClientState*>::iterator list_iterator_;
-  bool list_iterator_valid_;
-
-  // Set to disable allocating a frontbuffer or to disable allocations
-  // for clients that don't have surfaces.
-  bool hibernated_;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_GPU_GPU_MEMORY_MANAGER_CLIENT_H_