ui/ozone/platform/drm/host/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_DRM_HOST_CHANNEL_OBSERVER_H_
   6 #define UI_OZONE_PLATFORM_DRM_HOST_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_DRM_HOST_CHANNEL_OBSERVER_H_