Index: content/browser/battery_status/battery_status_provider_impl.h |
diff --git a/content/browser/battery_status/battery_status_provider_impl.h b/content/browser/battery_status/battery_status_provider_impl.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..fdb5d763681b3ea7ac884bd2fa7cf39a41322946 |
--- /dev/null |
+++ b/content/browser/battery_status/battery_status_provider_impl.h |
@@ -0,0 +1,42 @@ |
+// Copyright (c) 2012 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_BATTERY_STATUS_BATTERY_STATUS_PROVIDER_IMPL_H_ |
+#define CONTENT_BROWSER_BATTERY_STATUS_BATTERY_STATUS_PROVIDER_IMPL_H_ |
+ |
+#include "base/memory/singleton.h" |
+#include "base/observer_list.h" |
+#include "content/public/browser/battery_status_provider.h" |
+ |
+namespace content { |
+ |
+class BatteryStatusProviderImpl : public BatteryStatusProvider { |
+ public: |
+ class Observer { |
+ public: |
+ virtual void PowerChanged(const PowerSupplyStatus& power_status) = 0; |
+ }; |
+ |
+ static BatteryStatusProviderImpl* GetInstance(); |
+ |
+ void AddObserver(Observer* observer); |
+ void RemoveObserver(Observer* observer); |
+ |
+ // Overridden from BatteryStatusProvider. |
+ virtual void SendUpdate(const PowerSupplyStatus& power_status) OVERRIDE; |
+ |
+ private: |
+ friend struct DefaultSingletonTraits<BatteryStatusProviderImpl>; |
+ |
+ BatteryStatusProviderImpl(); |
+ virtual ~BatteryStatusProviderImpl(); |
+ |
+ ObserverList<Observer> observers_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(BatteryStatusProviderImpl); |
+}; |
+ |
+} // namespace content |
+ |
+#endif // CONTENT_BROWSER_BATTERY_STATUS_BATTERY_STATUS_PROVIDER_IMPL_H_ |