Chrome power profiler service

content/browser/power_profiler/power_data_provider.h

+// 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 content {
+
+typedef std::vector<PowerEvent> PowerEventVector;
+
+// A class used to get power usage.
+class PowerDataProvider {
+ public:
+  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;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_POWER_PROFILER_POWER_DATA_PROVIDER_H_