Rename Timer.repeating to Timer.periodic.

samples/swarm/swarm_ui_lib/base/AnimationScheduler.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;
 
 typedef void AnimationCallback(num currentTime);
 
 class CallbackData {
   final AnimationCallback callback;
@@ skipping 75 matching lines @@
     _callbacks.add(callbackData);
     if (_timer == null) {
       _setupInterval();
     }
   }
 
   void _setupInterval() {
     // Assert that we never schedule multiple frames at once.
     assert(__timer == null);
     if (USE_INTERVALS) {
-      _timer = new Timer.repeating(const Duration(milliseconds: MS_PER_FRAME),
+      _timer = new Timer.periodic(const Duration(milliseconds: MS_PER_FRAME),
           (_) { _step(); });
     } else {
       if (_webkitAnimationFrameMaybeAvailable) {
         try {
           // TODO(jacobr): passing in document should not be required.
           window.webkitRequestAnimationFrame(
               (int ignored) { _step(); });
               // TODO(jacobr) fix this odd type error.
         } catch (e) {
           _webkitAnimationFrameMaybeAvailable = false;
@@ skipping 54 matching lines @@
     _frameCount++;
     if (_isMobileSafari) {
       // Hack to work around an iOS bug where sometimes animations do not
       // render if only webkit transforms were modified.
       // TODO(jacobr): find a cleaner workaround.
       int offset = _frameCount % 2;
       _safariHackStyle.left = '${offset}px';
     }
   }
 }