Creating multi profile animations for switching users and teleporting of windows.

ash/system/tray/system_tray_delegate.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_TRAY_SYSTEM_TRAY_DELEGATE_H_
 #define ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 296 matching lines @@
       scoped_ptr<VolumeControlDelegate> delegate) = 0;
 
   // Retrieves the session start time. Returns |false| if the time is not set.
   virtual bool GetSessionStartTime(base::TimeTicks* session_start_time) = 0;
 
   // Retrieves the session length limit. Returns |false| if no limit is set.
   virtual bool GetSessionLengthLimit(base::TimeDelta* session_length_limit) = 0;
 
   // Get the system tray menu size in pixels (dependent on the language).
   virtual int GetSystemTrayMenuWidth() = 0;
+
+  // The active user has been changed. This will be called when the UI is ready
+  // to be switched to the new user.
+  // Note: This will happen after SessionStateObserver::ActiveUserChanged fires.
+  virtual void ActiveUserWasChanged() = 0;
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_SYSTEM_TRAY_DELEGATE_H_