Use MailboxManagerSync on android.

services/gles2/command_buffer_driver.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 "services/gles2/command_buffer_driver.h"
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/memory/shared_memory.h"
 #include "gpu/command_buffer/common/constants.h"
@@ skipping 218 matching lines @@
   OnContextLost(state.context_lost_reason);
 }
 
 void CommandBufferDriver::OnResize(gfx::Size size, float scale_factor) {
   surface_->Resize(size);
 }
 
 bool CommandBufferDriver::OnWaitSyncPoint(uint32_t sync_point) {
   if (!sync_point)
     return true;
+  if (mailbox_manager_->UsesSync())
+    mailbox_manager_->PullTextureUpdates(sync_point);
   if (sync_point_manager_->IsSyncPointRetired(sync_point))
     return true;
   scheduler_->SetScheduled(false);
   sync_point_manager_->AddSyncPointCallback(
       sync_point, base::Bind(&CommandBufferDriver::OnSyncPointRetired,
                              weak_factory_.GetWeakPtr()));
   return scheduler_->IsScheduled();
 }
 
 void CommandBufferDriver::OnSyncPointRetired() {
   scheduler_->SetScheduled(true);
 }
 
+void CommandBufferDriver::RetireSyncPointOnGpuThread(uint32 sync_point) {
+  if (mailbox_manager_->UsesSync())
+    mailbox_manager_->PushTextureUpdates(sync_point);
+  sync_point_manager_->RetireSyncPoint(sync_point);
+}
+
 void CommandBufferDriver::OnContextLost(uint32_t reason) {
   loss_observer_->DidLoseContext(reason);
   client_->DidLoseContext();
 }
 
 void CommandBufferDriver::OnUpdateVSyncParameters(
     const base::TimeTicks timebase,
     const base::TimeDelta interval) {
   client_->UpdateVSyncParameters(timebase, interval);
 }
 
 }  // namespace gles2