| // 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. |
| |
| #ifndef UI_OZONE_PLATFORM_DRM_HOST_GPU_THREAD_OBSERVER_H_ |
| #define UI_OZONE_PLATFORM_DRM_HOST_GPU_THREAD_OBSERVER_H_ |
| |
| namespace ui { |
| |
| // Observes the channel state. |
| class GpuThreadObserver { |
| public: |
| virtual ~GpuThreadObserver() {} |
| |
| // Called when a GPU thread implementation has become available. |
| virtual void OnGpuThreadReady() = 0; |
| // Called when the GPU thread implementation has ceased to be |
| // available. |
| virtual void OnGpuThreadRetired() = 0; |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_OZONE_PLATFORM_DRM_HOST_GPU_THREAD_OBSERVER_H_ |