aura: Remove sync point methods from ImageTransportFactory api.

content/browser/aura/no_transport_image_transport_factory.cc

 // Copyright (c) 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 "content/browser/aura/no_transport_image_transport_factory.h"
 
 #include "cc/output/context_provider.h"
 #include "content/common/gpu/client/gl_helper.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "ui/compositor/compositor.h"
@@ skipping 65 matching lines @@
 
 GLHelper* NoTransportImageTransportFactory::GetGLHelper() {
   if (!gl_helper_) {
     context_provider_ = context_factory_->SharedMainThreadContextProvider();
     gl_helper_.reset(new GLHelper(context_provider_->ContextGL(),
                                   context_provider_->ContextSupport()));
   }
   return gl_helper_.get();
 }
 
-uint32 NoTransportImageTransportFactory::InsertSyncPoint() { return 0; }
-
-void NoTransportImageTransportFactory::WaitSyncPoint(uint32 sync_point) {}
-
 // We don't generate lost context events, so we don't need to keep track of
 // observers
 void NoTransportImageTransportFactory::AddObserver(
     ImageTransportFactoryObserver* observer) {}
 
 void NoTransportImageTransportFactory::RemoveObserver(
     ImageTransportFactoryObserver* observer) {}
 
 }  // namespace content