Move tray code from ui/chromeos/network/

ash/common/system/chromeos/network/network_icon_animation_observer.h

Index: ash/common/system/chromeos/network/network_icon_animation_observer.h
diff --git a/ui/chromeos/network/network_icon_animation_observer.h b/ash/common/system/chromeos/network/network_icon_animation_observer.h
similarity index 69%
rename from ui/chromeos/network/network_icon_animation_observer.h
rename to ash/common/system/chromeos/network/network_icon_animation_observer.h
index ad8dd1c8d93482372e95e927d099dffc16ebd14d..9428b83cf3898d8b75927781a1a132f79213101d 100644
--- a/ui/chromeos/network/network_icon_animation_observer.h
+++ b/ash/common/system/chromeos/network/network_icon_animation_observer.h
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef UI_CHROMEOS_NETWORK_NETWORK_ICON_ANIMATION_OBSERVER_H_
-#define UI_CHROMEOS_NETWORK_NETWORK_ICON_ANIMATION_OBSERVER_H_
+#ifndef ASH_COMMON_SYSTEM_CHROMEOS_NETWORK_NETWORK_ICON_ANIMATION_OBSERVER_H_
+#define ASH_COMMON_SYSTEM_CHROMEOS_NETWORK_NETWORK_ICON_ANIMATION_OBSERVER_H_
 
 #include "ui/chromeos/ui_chromeos_export.h"
 
-namespace ui {
+namespace ash {
 namespace network_icon {
 
 // Observer interface class for animating network icons.
@@ -22,6 +22,6 @@ class UI_CHROMEOS_EXPORT AnimationObserver {
 };
 
 }  // namespace network_icon
-}  // namespace ui
+}  // namespace ash
 
-#endif  // UI_CHROMEOS_NETWORK_NETWORK_ICON_ANIMATION_OBSERVER_H_
+#endif  // ASH_COMMON_SYSTEM_CHROMEOS_NETWORK_NETWORK_ICON_ANIMATION_OBSERVER_H_