MailboxSync: Imply fence with sync point

content/common/gpu/gpu_command_buffer_stub.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 "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/hash.h"
 #include "base/json/json_writer.h"
@@ skipping 840 matching lines @@
     memory_manager_client_state_->SetVisible(visible);
 }
 
 void GpuCommandBufferStub::AddSyncPoint(uint32 sync_point) {
   sync_points_.push_back(sync_point);
 }
 
 void GpuCommandBufferStub::OnRetireSyncPoint(uint32 sync_point) {
   DCHECK(!sync_points_.empty() && sync_points_.front() == sync_point);
   sync_points_.pop_front();
-  if (context_group_->mailbox_manager()->UsesSync() && MakeCurrent())
-    context_group_->mailbox_manager()->PushTextureUpdates();
   GpuChannelManager* manager = channel_->gpu_channel_manager();
   manager->sync_point_manager()->RetireSyncPoint(sync_point);
 }
 
 bool GpuCommandBufferStub::OnWaitSyncPoint(uint32 sync_point) {
   if (!sync_point)
     return true;
   GpuChannelManager* manager = channel_->gpu_channel_manager();
   if (manager->sync_point_manager()->IsSyncPointRetired(sync_point))
     return true;
@@ skipping 208 matching lines @@
 uint64 GpuCommandBufferStub::GetMemoryUsage() const {
   return GetMemoryManager()->GetClientMemoryUsage(this);
 }
 
 void GpuCommandBufferStub::SwapBuffersCompleted(
     const std::vector<ui::LatencyInfo>& latency_info) {
   Send(new GpuCommandBufferMsg_SwapBuffersCompleted(route_id_, latency_info));
 }
 
 }  // namespace content