Implemented new fence syncs which replaces the old sync points.

mojo/gles2/command_buffer_client_impl.h

 // Copyright 2014 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 MOJO_GLES2_COMMAND_BUFFER_CLIENT_IMPL_H_
 #define MOJO_GLES2_COMMAND_BUFFER_CLIENT_IMPL_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 58 matching lines @@
   void RetireSyncPoint(uint32 sync_point) override;
   void SignalSyncPoint(uint32 sync_point,
                        const base::Closure& callback) override;
   void SignalQuery(uint32 query, const base::Closure& callback) override;
   void SetSurfaceVisible(bool visible) override;
   uint32 CreateStreamTexture(uint32 texture_id) override;
   void SetLock(base::Lock*) override;
   bool IsGpuChannelLost() override;
   gpu::CommandBufferNamespace GetNamespaceID() const override;
   uint64_t GetCommandBufferID() const override;
+  uint64_t GenerateFenceSyncRelease() override;
+  bool IsFenceSyncRelease(uint64_t release) override;
+  bool IsFenceSyncFlushed(uint64_t release) override;
 
  private:
   class SyncClientImpl;
   class SyncPointClientImpl;
 
   // mojo::CommandBufferLostContextObserver implementation:
   void DidLoseContext(int32_t lost_reason) override;
 
   void TryUpdateState();
   void MakeProgressAndUpdateState();
@@ skipping 10 matching lines @@
   gpu::Capabilities capabilities_;
   State last_state_;
   mojo::ScopedSharedBufferHandle shared_state_handle_;
   gpu::CommandBufferSharedState* shared_state_;
   int32_t last_put_offset_;
   int32_t next_transfer_buffer_id_;
 
   // Image IDs are allocated in sequence.
   int next_image_id_;
 
+  uint64_t next_fence_sync_release_;
+  uint64_t flushed_fence_sync_release_;
+
   const MojoAsyncWaiter* async_waiter_;
 };
 
 }  // gles2
 
 #endif  // MOJO_GLES2_COMMAND_BUFFER_CLIENT_IMPL_H_