// Copyright 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.

[DartPackage="mojo_services"]
module mojo;

interface ViewportParameterListener {
  // These parameters describe the refresh rate of the viewport. The viewport
  // refreshes every |interval| time ticks. The phase of the refresh is
  // indicated by |timebase|, which is synchronized with MojoGetTimeTicksNow.
  OnVSyncParametersUpdated(int64 timebase, int64 interval);
};