Update bower.json for Polymer elements and add PRESUBMIT.py

third_party/polymer/v1_0/components/neon-animation/animations/transform-animation.html

 <!--
 @license
 Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
 This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
 The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
 Code distributed by Google as part of the polymer project is also
 subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
 -->
 
 <link rel="import" href="../../polymer/polymer.html">
 <link rel="import" href="../neon-animation-behavior.html">
 <link rel="import" href="../web-animations.html">
 
 <!--
-`<slide-down-animation>` animates a custom transform on an element. Use this to animate multiple
+`<transform-animation>` animates a custom transform on an element. Use this to animate multiple
 transform properties, or to apply a custom transform value.
 
 Configuration:
 ```
 {
-  name: 'slide-down-animation',
+  name: 'transform-animation',
   node: <node>,
   transformOrigin: <transform-origin>,
   transformFrom: <transform-from-string>,
   transformTo: <transform-to-string>,
   timing: <animation-timing>
 }
 ```
 -->
 
 <script>
 
   Polymer({
 
     is: 'transform-animation',
 
     behaviors: [
       Polymer.NeonAnimationBehavior
     ],
 
+    /**
+     * @param {{
+     *   node: !Element,
+     *   transformOrigin: (string|undefined),
+     *   transformFrom: (string|undefined),
+     *   transformTo: (string|undefined),
+     *   timing: (Object|undefined)
+     * }} config
+     */
     configure: function(config) {
       var node = config.node;
       var transformFrom = config.transformFrom || 'none';
       var transformTo = config.transformTo || 'none';
 
       if (config.transformOrigin) {
         this.setPrefixedProperty(node, 'transformOrigin', config.transformOrigin);
       }
 
       this._effect = new KeyframeEffect(node, [
         {'transform': transformFrom},
         {'transform': transformTo}
       ], this.timingFromConfig(config));
 
       return this._effect;
     }
 
   });
 
 </script>