Upstream version 10.39.225.0
[platform/framework/web/crosswalk.git] / src / ui / ozone / platform / dri / channel_observer.h
1 // Copyright 2014 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 #ifndef UI_OZONE_PLATFORM_DRI_CHANNEL_OBSERVER_H_
6 #define UI_OZONE_PLATFORM_DRI_CHANNEL_OBSERVER_H_
7
8 namespace ui {
9
10 // Observes the channel state.
11 class ChannelObserver {
12  public:
13   virtual ~ChannelObserver() {}
14
15   virtual void OnChannelEstablished() = 0;
16   virtual void OnChannelDestroyed() = 0;
17 };
18
19 }  // namespace ui
20
21 #endif  // UI_OZONE_PLATFORM_DRI_CHANNEL_OBSERVER_H_