Refactor gpu::Buffer to allow different types of backing

gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.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.
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 1405 matching lines @@
     GLsizei num_vertices, GLuint buffer_id) {
   AddExpectationsForSimulatedAttrib0WithError(
       num_vertices, buffer_id, GL_NO_ERROR);
 }
 
 GLES2DecoderWithShaderTestBase::MockCommandBufferEngine::
 MockCommandBufferEngine() {
 
   scoped_ptr<base::SharedMemory> shm(new base::SharedMemory());
   shm->CreateAndMapAnonymous(kSharedBufferSize);
-  valid_buffer_ = new gpu::Buffer(shm.Pass(), kSharedBufferSize);
+  valid_buffer_ = MakeBufferFromSharedMemory(shm.Pass(), kSharedBufferSize);
 
   ClearSharedMemory();
 }
 
 GLES2DecoderWithShaderTestBase::MockCommandBufferEngine::
 ~MockCommandBufferEngine() {}
 
 scoped_refptr<gpu::Buffer>
 GLES2DecoderWithShaderTestBase::MockCommandBufferEngine::GetSharedMemoryBuffer(
     int32 shm_id) {
@@ skipping 27 matching lines @@
   SetupDefaultProgram();
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/service/gles2_cmd_decoder_unittest_0_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu