GPU client side changes for GpuMemoryBuffers

gpu/command_buffer/client/gpu_memory_buffer_factory.cc

 // 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.
 
 #include "gpu/command_buffer/client/gpu_memory_buffer_factory.h"
 
 #include "base/logging.h"
 
 namespace gpu {
+namespace gles2 {
 
 namespace {
 GpuMemoryBuffer::Creator* g_gpu_memory_buffer_factory_ = NULL;
 }
 
 const GpuMemoryBuffer::Creator& GetProcessDefaultGpuMemoryBufferFactory() {
+  DCHECK(g_gpu_memory_buffer_factory_ != NULL);
   return *g_gpu_memory_buffer_factory_;
 }
 
 void SetProcessDefaultGpuMemoryBufferFactory(
     const GpuMemoryBuffer::Creator& factory) {
   DCHECK(g_gpu_memory_buffer_factory_ == NULL);
+  // TODO(kaanb): move the ownership of this memory to android_webview
   g_gpu_memory_buffer_factory_ = new GpuMemoryBuffer::Creator(factory);
 }
 
+}  // namespace gles2
 }  // namespace gpu