chromeos: Implement power button animations for Aura.

base/timer.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
 // OneShotTimer and RepeatingTimer provide a simple timer API.  As the names
 // suggest, OneShotTimer calls you back once after a time delay expires.
 // RepeatingTimer on the other hand calls you back periodically with the
 // prescribed time interval.
 //
 // OneShotTimer and RepeatingTimer both cancel the timer when they go out of
 // scope, which makes it easy to ensure that you do not get called when your
 // object has gone out of scope.  Just instantiate a OneShotTimer or
 // RepeatingTimer as a member variable of the class for which you wish to
 // receive timer events.
 //
 // Sample RepeatingTimer usage:
 //
 //   class MyClass {
 //    public:
 //     void StartDoingStuff() {
-//       timer_.Start(TimeDelta::FromSeconds(1), this, &MyClass::DoStuff);
+//       timer_.Start(FROM_HERE, TimeDelta::FromSeconds(1),
+//                    this, &MyClass::DoStuff);
 //     }
 //     void StopDoingStuff() {
 //       timer_.Stop();
 //     }
 //    private:
 //     void DoStuff() {
 //       // This method is called every second to do stuff.
 //       ...
 //     }
 //     base::RepeatingTimer<MyClass> timer_;
@@ skipping 248 matching lines @@
   const ReceiverMethod method_;
   const TimeDelta delay_;
 
   OneShotTimer<DelayTimer<Receiver> > timer_;
   TimeTicks trigger_time_;
 };
 
 }  // namespace base
 
 #endif  // BASE_TIMER_H_