gpu: Refactor GpuMemoryBuffer framework for multi-process support.

gpu/command_buffer/client/client_test_helper.cc

 // Copyright (c) 2012 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.
 
 // Tests for GLES2Implementation.
 
 #include "gpu/command_buffer/client/client_test_helper.h"
 
 #include "gpu/command_buffer/common/command_buffer.h"
 #include "gpu/command_buffer/client/cmd_buffer_helper.h"
@@ skipping 133 matching lines @@
 MockClientCommandBufferMockFlush::~MockClientCommandBufferMockFlush() {
 }
 
 void MockClientCommandBufferMockFlush::DelegateToFake() {
   MockClientCommandBuffer::DelegateToFake();
   ON_CALL(*this, Flush(_))
       .WillByDefault(Invoke(
           this, &MockCommandBufferBase::FlushHelper));
 }
 
+MockClientGpuControl::MockClientGpuControl() {
+}
+
+MockClientGpuControl::~MockClientGpuControl() {
+}
+
 }  // namespace gpu