Make lost context and error message callbacks on GpuControl go to client

components/mus/gles2/command_buffer_local.h

 // Copyright 2015 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_LOCAL_H_
 #define COMPONENTS_MUS_GLES2_COMMAND_BUFFER_LOCAL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 56 matching lines @@
   void Flush(int32_t put_offset) override;
   void OrderingBarrier(int32_t put_offset) override;
   void WaitForTokenInRange(int32_t start, int32_t end) override;
   void WaitForGetOffsetInRange(int32_t start, int32_t end) override;
   void SetGetBuffer(int32_t buffer) override;
   scoped_refptr<gpu::Buffer> CreateTransferBuffer(size_t size,
                                                   int32_t* id) override;
   void DestroyTransferBuffer(int32_t id) override;
 
   // gpu::GpuControl implementation:
+  void SetGpuControlClient(gpu::GpuControlClient*) override;
   gpu::Capabilities GetCapabilities() override;
   int32_t CreateImage(ClientBuffer buffer,
                       size_t width,
                       size_t height,
                       unsigned internalformat) override;
   void DestroyImage(int32_t id) override;
   int32_t CreateGpuMemoryBufferImage(size_t width,
                                      size_t height,
                                      unsigned internal_format,
                                      unsigned usage) override;
@@ skipping 75 matching lines @@
   // This weak factory will be invalidated in the client thread, so all weak
   // pointers have to be dereferenced in the client thread too.
   base::WeakPtrFactory<CommandBufferLocal> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CommandBufferLocal);
 };
 
 }  //  namespace mus
 
 #endif  // COMPONENTS_MUS_GLES2_COMMAND_BUFFER_LOCAL_H_