gpu: Directly cast ClientBuffer to gfx::GpuMemoryBuffer

content/child/child_gpu_memory_buffer_manager.cc

 // 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.
 
 #include "content/child/child_gpu_memory_buffer_manager.h"
 
 #include <memory>
 #include <utility>
 
 #include "content/common/child_process_messages.h"
@@ skipping 59 matching lines @@
 
 std::unique_ptr<gfx::GpuMemoryBuffer>
 ChildGpuMemoryBufferManager::CreateGpuMemoryBufferFromHandle(
     const gfx::GpuMemoryBufferHandle& handle,
     const gfx::Size& size,
     gfx::BufferFormat format) {
   NOTIMPLEMENTED();
   return nullptr;
 }
 
-gfx::GpuMemoryBuffer*
-ChildGpuMemoryBufferManager::GpuMemoryBufferFromClientBuffer(
-    ClientBuffer buffer) {
-  return gpu::GpuMemoryBufferImpl::FromClientBuffer(buffer);
-}
-
 void ChildGpuMemoryBufferManager::SetDestructionSyncToken(
     gfx::GpuMemoryBuffer* buffer,
     const gpu::SyncToken& sync_token) {
   static_cast<gpu::GpuMemoryBufferImpl*>(buffer)->set_destruction_sync_token(
       sync_token);
 }
 
 }  // namespace content