| // Copyright 2019 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_PUBLIC_RAIL_MODE_OBSERVER_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_PUBLIC_RAIL_MODE_OBSERVER_H_ |
| |
| namespace blink { |
| |
| // RAIL mode as defined in [1]. |
| // [1] https://developers.google.com/web/fundamentals/performance/rail |
| enum class RAILMode { |
| kResponse, |
| kAnimation, |
| kIdle, |
| kLoad, |
| }; |
| |
| class RAILModeObserver { |
| public: |
| virtual ~RAILModeObserver() = default; |
| virtual void OnRAILModeChanged(RAILMode rail_mode) = 0; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_PUBLIC_RAIL_MODE_OBSERVER_H_ |
