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

third_party/polymer/v1_0/components-chromium/paper-radio-group/paper-radio-group-extracted.js

 
   Polymer({
     is: 'paper-radio-group',
 
     behaviors: [
       Polymer.IronA11yKeysBehavior,
       Polymer.IronSelectableBehavior
     ],
 
     hostAttributes: {
       role: 'radiogroup',
       tabindex: 0
     },
 
     properties: {
       /**
        * Overriden from Polymer.IronSelectableBehavior
        */
       attrForSelected: {
         type: String,
         value: 'name'
       },
 
       /**
        * Overriden from Polymer.IronSelectableBehavior
        */
       selectedAttribute: {
         type: String,
         value: 'checked'
+      },
+
+      /**
+       * Overriden from Polymer.IronSelectableBehavior
+       */
+      selectable: {
+        type: String,
+        value: 'paper-radio-button'
       }
     },
 
     keyBindings: {
       'left up': 'selectPrevious',
       'right down': 'selectNext',
     },
 
     /**
      * Selects the given value.
@@ skipping 26 matching lines @@
 
       do {
         newIndex = (newIndex - 1 + length) % length;
       } while (this.items[newIndex].disabled)
 
       this.select(this._indexToValue(newIndex));
     },
 
     /**
      * Selects the next item. If the next item is disabled, then it is
-     * skipped, and its nexy item is selected
+     * skipped, and the next item after it is selected.
      */
     selectNext: function() {
       var length = this.items.length;
       var newIndex = Number(this._valueToIndex(this.selected));
 
       do {
         newIndex = (newIndex + 1 + length) % length;
       } while (this.items[newIndex].disabled)
 
       this.select(this._indexToValue(newIndex));
     },
   });