Add Origin Power Map to Store Battery Auditing Data.

components/power/origin_power_map_factory.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 COMPONENTS_POWER_ORIGIN_POWER_MAP_FACTORY_H_
+#define COMPONENTS_POWER_ORIGIN_POWER_MAP_FACTORY_H_
+
+#include "base/memory/singleton.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"

[blundell, 2014/08/12 12:49:00]

Is this component intended to be used on iOS? Your avoidance of dependencies on
//content suggests that it is; however, this dependency is effectively a
//content dependency. You can either:
(1) Move the factory back to //chrome (but keep the service in the component)
(2) If this component isn't intended to be used on iOS, move it to the list of
gypis not used on iOS in components.gyp, add a dependency on
keyed_service_content in your gypi file, and depend on //content as much as you
want :).

[Daniel Nishi, 2014/08/12 17:33:46]

Sadly, iOS is the only platform that doesn't implement what I need to have a
power heuristic.

I've gone with the second option.

+
+namespace power {
+
+class OriginPowerMap;
+
+class OriginPowerMapFactory : public BrowserContextKeyedServiceFactory {
+ public:
+  static OriginPowerMap* GetForBrowserContext(content::BrowserContext* context);
+  static OriginPowerMapFactory* GetInstance();
+
+ private:
+  friend struct DefaultSingletonTraits<OriginPowerMapFactory>;
+
+  OriginPowerMapFactory();
+  virtual ~OriginPowerMapFactory();
+
+  // BrowserContextKeyedServiceFactory:
+  virtual KeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* context) const OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(OriginPowerMapFactory);
+};
+
+}  // namespace power
+
+#endif  // COMPONENTS_POWER_ORIGIN_POWER_MAP_FACTORY_H_