[MD settings] updating polymer to 1.1.13

third_party/polymer/v1_0/components-chromium/paper-button/paper-button-extracted.js

 Polymer({
-
     is: 'paper-button',
 
     behaviors: [
       Polymer.PaperButtonBehavior
     ],
 
     properties: {
-
       /**
        * If true, the button should be styled with a shadow.
        */
       raised: {
         type: Boolean,
         reflectToAttribute: true,
         value: false,
         observer: '_calculateElevation'
       }
     },
 
     _calculateElevation: function() {
       if (!this.raised) {
         this._elevation = 0;
       } else {
         Polymer.PaperButtonBehaviorImpl._calculateElevation.apply(this);
       }
     },
 
     _computeContentClass: function(receivedFocusFromKeyboard) {
       var className = 'content ';
       if (receivedFocusFromKeyboard) {
         className += ' keyboard-focus';
       }
       return className;
     }
   });