gpu: Separate GpuControlService from GpuControl

gpu/command_buffer/common/gpu_control.h

-// 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 GPU_COMMAND_BUFFER_COMMON_GPU_CONTROL_H_
-#define GPU_COMMAND_BUFFER_COMMON_GPU_CONTROL_H_
-
-#include <vector>
-
-#include "base/callback.h"
-#include "gpu/command_buffer/common/capabilities.h"
-#include "gpu/command_buffer/common/mailbox.h"
-#include "gpu/command_buffer/common/types.h"
-#include "gpu/gpu_export.h"
-
-namespace gfx {
-class GpuMemoryBuffer;
-}
-
-namespace gpu {
-struct ManagedMemoryStats;
-
-// Common interface for GpuControl implementations.
-class GPU_EXPORT GpuControl {
- public:
-  GpuControl() {}
-  virtual ~GpuControl() {}
-
-  virtual Capabilities GetCapabilities() = 0;
-
-  // Create a gpu memory buffer of the given dimensions and format. Returns
-  // its ID or -1 on error.
-  virtual gfx::GpuMemoryBuffer* CreateGpuMemoryBuffer(
-      size_t width,
-      size_t height,
-      unsigned internalformat,
-      int32* id) = 0;
-
-  // Destroy a gpu memory buffer. The ID must be positive.
-  virtual void DestroyGpuMemoryBuffer(int32 id) = 0;
-
-  // Inserts a sync point, returning its ID. Sync point IDs are global and can
-  // be used for cross-context synchronization.
-  virtual uint32 InsertSyncPoint() = 0;
-
-  // Runs |callback| when a sync point is reached.
-  virtual void SignalSyncPoint(uint32 sync_point,
-                               const base::Closure& callback) = 0;
-
-  // Runs |callback| when a query created via glCreateQueryEXT() has cleared
-  // passed the glEndQueryEXT() point.
-  virtual void SignalQuery(uint32 query, const base::Closure& callback) = 0;
-
-  virtual void SetSurfaceVisible(bool visible) = 0;
-
-  virtual void SendManagedMemoryStats(const ManagedMemoryStats& stats) = 0;
-
-  // Invokes the callback once the context has been flushed.
-  virtual void Echo(const base::Closure& callback) = 0;
-
-  // Attaches an external stream to the texture given by |texture_id| and
-  // returns a stream identifier.
-  virtual uint32 CreateStreamTexture(uint32 texture_id) = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(GpuControl);
-};
-
-}  // namespace gpu
-
-#endif  // GPU_COMMAND_BUFFER_COMMON_GPU_CONTROL_H_