gpu: Don't call SetSwapInterval() for NullTransportSurface

content/common/gpu/null_transport_surface.cc

 // Copyright (c) 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 "content/common/gpu/null_transport_surface.h"
 
 #include "base/command_line.h"
 #include "content/common/gpu/gpu_channel.h"
 #include "content/common/gpu/gpu_channel_manager.h"
 #include "content/common/gpu/gpu_command_buffer_stub.h"
@@ skipping 46 matching lines @@
 bool NullTransportSurface::PostSubBuffer(
     int x, int y, int width, int height) {
   NOTIMPLEMENTED();
   return false;
 }
 
 void NullTransportSurface::SendVSyncUpdateIfAvailable() {
   NOTREACHED();
 }
 
+bool NullTransportSurface::OnMakeCurrent(gfx::GLContext* context) {
+  // Override PassThroughImageTransportSurface default behavior which
+  // sets the swap interval.
+  return true;
+}
+
 }  // namespace content