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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 [DartPackage="mojo_services"] | |
6 module vsync; | |
7 | |
8 interface VSyncProvider { | |
9 // Waits for the next vsync and returns its timestamp once it happens. The | |
10 // timestamps can only be compared with other calls of this method. | |
11 // Only one callback can be parked at a given time. | |
12 AwaitVSync() => (int64 time_stamp); | |
13 }; | |
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