cc: Move GpuMemoryBuffer allocation to worker threads.

cc/resources/one_copy_raster_worker_pool.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 "cc/resources/one_copy_raster_worker_pool.h"
 
 #include <algorithm>
 #include <limits>
 
 #include "base/debug/trace_event.h"
@@ skipping 37 matching lines @@
     // Return raster resource to pool so it can be used by another RasterBuffer
     // instance.
     resource_pool_->ReleaseResource(raster_resource_.Pass());
   }
 
   // Overridden from RasterBuffer:
   void Playback(const PicturePileImpl* picture_pile,
                 const gfx::Rect& rect,
                 float scale,
                 RenderingStatsInstrumentation* stats) override {
-    gfx::GpuMemoryBuffer* gpu_memory_buffer = lock_->gpu_memory_buffer();
+    gfx::GpuMemoryBuffer* gpu_memory_buffer = lock_->GetGpuMemoryBuffer();
     if (!gpu_memory_buffer)
       return;
 
     RasterWorkerPool::PlaybackToMemory(gpu_memory_buffer->Map(),
                                        raster_resource_->format(),
                                        raster_resource_->size(),
                                        gpu_memory_buffer->GetStride(),
                                        picture_pile,
                                        rect,
                                        scale,
@@ skipping 300 matching lines @@
                             resource_pool_->total_memory_usage_bytes());
   staging_state->SetInteger("pending_copy_count",
                             resource_pool_->total_resource_count() -
                                 resource_pool_->acquired_resource_count());
   staging_state->SetInteger("bytes_pending_copy",
                             resource_pool_->total_memory_usage_bytes() -
                                 resource_pool_->acquired_memory_usage_bytes());
 }
 
 }  // namespace cc