Implemented new fence syncs which replaces the old sync points.

components/mus/gles2/command_buffer_driver.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 COMPONENTS_MUS_GLES2_COMMAND_BUFFER_DRIVER_H_
 #define COMPONENTS_MUS_GLES2_COMMAND_BUFFER_DRIVER_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/timer/timer.h"
 #include "components/mus/public/interfaces/command_buffer.mojom.h"
+#include "gpu/command_buffer/common/constants.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace gpu {
 class CommandBufferService;
 class GpuScheduler;
 class GpuControlService;
 namespace gles2 {
 class GLES2Decoder;
 }
 }
@@ skipping 41 matching lines @@
                    int32_t format,
                    int32_t internal_format);
   void DestroyImage(int32_t id);
 
  private:
   bool MakeCurrent();
   bool DoInitialize(mojo::ScopedSharedBufferHandle shared_state,
                     mojo::Array<int32_t> attribs);
   void OnResize(gfx::Size size, float scale_factor);
   bool OnWaitSyncPoint(uint32_t sync_point);
+  void OnFenceSyncRelease(uint64_t release);
+  bool OnWaitFenceSync(gpu::CommandBufferNamespace namespace_id,
+                       uint64_t command_buffer_id,
+                       uint64_t release);
   void OnSyncPointRetired();
   void OnParseError();
   void OnContextLost(uint32_t reason);
   void DestroyDecoder();
 
   scoped_ptr<Client> client_;
   mojo::CommandBufferSyncClientPtr sync_client_;
   mojo::CommandBufferLostContextObserverPtr loss_observer_;
   scoped_ptr<gpu::CommandBufferService> command_buffer_;
   scoped_ptr<gpu::gles2::GLES2Decoder> decoder_;
   scoped_ptr<gpu::GpuScheduler> scheduler_;
   scoped_refptr<gfx::GLContext> context_;
   scoped_refptr<gfx::GLSurface> surface_;
   scoped_refptr<GpuState> gpu_state_;
 
   scoped_refptr<base::SingleThreadTaskRunner> context_lost_task_runner_;
   base::Callback<void(int32_t)> context_lost_callback_;
 
   base::WeakPtrFactory<CommandBufferDriver> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CommandBufferDriver);
 };
 
 }  // namespace mus
 
 #endif  // COMPONENTS_GLES2_COMMAND_BUFFER_DRIVER_H_