Mojo: request/response bindings

mojo/services/gles2/command_buffer_impl.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 MOJO_SERVICES_GLES2_COMMAND_BUFFER_IMPL_H_
 #define MOJO_SERVICES_GLES2_COMMAND_BUFFER_IMPL_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/timer/timer.h"
 #include "mojo/public/bindings/remote_ptr.h"
@@ skipping 23 matching lines @@
 
   virtual void Initialize(ScopedCommandBufferSyncClientHandle sync_client,
                           const ShmHandle& shared_state) OVERRIDE;
   virtual void SetGetBuffer(int32_t buffer) OVERRIDE;
   virtual void Flush(int32_t put_offset) OVERRIDE;
   virtual void MakeProgress(int32_t last_get_offset) OVERRIDE;
   virtual void RegisterTransferBuffer(int32_t id,
                                       const ShmHandle& transfer_buffer,
                                       uint32_t size) OVERRIDE;
   virtual void DestroyTransferBuffer(int32_t id) OVERRIDE;
-  virtual void Echo() OVERRIDE;
+  virtual void Echo(const Callback<void()>& callback) OVERRIDE;
 
   virtual void RequestAnimationFrames() OVERRIDE;
   virtual void CancelAnimationFrames() OVERRIDE;
 
  private:
   bool DoInitialize(const ShmHandle& shared_state);
 
   void OnParseError();
 
   void DrawAnimationFrame();
 
   RemotePtr<CommandBufferClient> client_;
   RemotePtr<CommandBufferSyncClient> sync_client_;
 
   gfx::AcceleratedWidget widget_;
   gfx::Size size_;
   scoped_ptr<gpu::CommandBufferService> command_buffer_;
   scoped_ptr<gpu::gles2::GLES2Decoder> decoder_;
   scoped_ptr<gpu::GpuScheduler> scheduler_;
   scoped_ptr<gpu::GpuControlService> gpu_control_;
   base::RepeatingTimer<CommandBufferImpl> timer_;
 
   DISALLOW_COPY_AND_ASSIGN(CommandBufferImpl);
 };
 
 }  // namespace services
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_GLES2_COMMAND_BUFFER_IMPL_H_