Format samples and samples-dev directories.

samples-dev/swarm/swarm_ui_lib/base/Env.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of base;
 
 /**
  * This class has static fields that hold objects that this isolate
  * uses to interact with the environment.  Which objects are available
  * depend on how the isolate was started.  In the UI isolate
  * of the browser, the window object is available.
  */
 class Env {
   static AnimationScheduler _animationScheduler;
 
   /**
    * Provides functionality similar to [:window.requestAnimationFrame:] for
    * all platforms. [callback] is executed on the next animation frame that
    * occurs at or after [minTime].  If [minTime] is not specified, the first
    * available animation frame is used.  Returns an id that can be used to
    * cancel the pending callback.
    */
   static int requestAnimationFrame(AnimationCallback callback,
-                                   [Element element = null,
-                                    num minTime = null]) {
+      [Element element = null, num minTime = null]) {
     if (_animationScheduler == null) {
       _animationScheduler = new AnimationScheduler();
     }
     return _animationScheduler.requestAnimationFrame(
         callback, element, minTime);
   }
 
   /**
    * Cancel the pending callback callback matching the specified [id].
    */
   static void cancelRequestAnimationFrame(int id) {
     _animationScheduler.cancelRequestAnimationFrame(id);
   }
 }
 
 typedef void XMLHttpRequestCompleted(HttpRequest req);