| // 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 CONTENT_BROWSER_POWER_PROFILER_POWER_DATA_PROVIDER_H_ |
| #define CONTENT_BROWSER_POWER_PROFILER_POWER_DATA_PROVIDER_H_ |
| |
| #include <vector> |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "content/browser/power_profiler/power_event.h" |
| |
| namespace base { |
| class TimeDelta; |
| } // namespace base |
| |
| namespace content { |
| |
| typedef std::vector<PowerEvent> PowerEventVector; |
| |
| // A class used to get power usage. |
| class PowerDataProvider { |
| public: |
| enum AccuracyLevel { |
| High, |
| Moderate, |
| Low |
| }; |
| |
| static scoped_ptr<PowerDataProvider> Create(); |
| |
| PowerDataProvider() {} |
| virtual ~PowerDataProvider() {} |
| |
| // Returns a vector of power events, one per type, for the types it supports. |
| virtual PowerEventVector GetData() = 0; |
| |
| // Returns sampling rate at which the provider can operate. |
| virtual base::TimeDelta GetSamplingRate() = 0; |
| |
| // Returns accuracy level of the provider. |
| virtual AccuracyLevel GetAccuracyLevel() = 0; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_POWER_PROFILER_POWER_DATA_PROVIDER_H_ |