Add NetworkStateListDetailedView

ash/system/chromeos/network/network_icon_animation_observer.h

+// 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 ASH_SYSTEM_CHROMEOS_NETWORK_NETWORK_ICON_ANIMATION_OBSERVER_H_
+#define ASH_SYSTEM_CHROMEOS_NETWORK_NETWORK_ICON_ANIMATION_OBSERVER_H_
+
+namespace ash {
+namespace network_icon {
+
+// Observer interface class for animating network icons.
+class AnimationObserver {
+ public:
+  // Called when the image has changed due to animation. The callback should
+  // trigger a call to GetImageForNetwork() to retrieve the image.
+  virtual void NetworkIconChanged() = 0;
+
+ protected:
+  virtual ~AnimationObserver() {}
+};
+
+}  // namespace network_icon
+}  // namespace ash
+
+#endif  // ASH_SYSTEM_CHROMEOS_NETWORK_NETWORK_ICON_ANIMATION_OBSERVER_H_