Update paper-radio-button to 0.5.4.

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

 
 
   Polymer('paper-radio-button', {
     
     /**
      * Fired when the checked state changes due to user interaction.
      *
      * @event change
      */
      
@@ skipping 56 matching lines @@
       if (this.checked !== old) {
         this.fire('change');
       }
     },
     
     toggle: function() {
       this.checked = !this.toggles || !this.checked;
     },
     
     checkedChanged: function() {
-      this.$.onRadio.classList.toggle('fill', this.checked);
-      this.setAttribute('aria-checked', this.checked ? 'true': 'false');
+      this.setAttribute('aria-checked', this.checked ? 'true' : 'false');
       this.fire('core-change');
     },
     
     labelChanged: function() {
       this.setAttribute('aria-label', this.label);
     }
     
   });