Add OrderingBarrierCHROMIUM API.

gpu/command_buffer/service/in_process_command_buffer.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/service/in_process_command_buffer.h"
 
 #include <queue>
 #include <set>
 #include <utility>
 
@@ skipping 613 matching lines @@
   if (last_put_offset_ == put_offset)
     return;
 
   last_put_offset_ = put_offset;
   base::Closure task = base::Bind(&InProcessCommandBuffer::FlushOnGpuThread,
                                   gpu_thread_weak_ptr_,
                                   put_offset);
   QueueTask(task);
 }
 
+void InProcessCommandBuffer::OrderingBarrier(int32 put_offset) {
+  Flush(put_offset);
+}
+
 void InProcessCommandBuffer::WaitForTokenInRange(int32 start, int32 end) {
   CheckSequencedThread();
   while (!InRange(start, end, GetLastToken()) &&
          last_state_.error == gpu::error::kNoError)
     flush_event_.Wait();
 }
 
 void InProcessCommandBuffer::WaitForGetOffsetInRange(int32 start, int32 end) {
   CheckSequencedThread();
 
@@ skipping 313 matching lines @@
 
 #if defined(OS_ANDROID)
 scoped_refptr<gfx::SurfaceTexture>
 InProcessCommandBuffer::GetSurfaceTexture(uint32 stream_id) {
   DCHECK(stream_texture_manager_);
   return stream_texture_manager_->GetSurfaceTexture(stream_id);
 }
 #endif
 
 }  // namespace gpu