[MediaRouter UI] Compile MR WebUI js code with Closure.

third_party/polymer/v1_0/components-chromium/paper-dropdown-menu/paper-dropdown-menu-extracted.js

 (function() {
       'use strict';
 
       Polymer({
         is: 'paper-dropdown-menu',
 
         /**
          * Fired when the dropdown opens.
          *
          * @event paper-dropdown-open
@@ skipping 228 matching lines @@
           // NOTE(cdata): These numbers are somewhat magical because they are
           // derived from the metrics of elements internal to `paper-input`'s
           // template. The metrics will change depending on whether or not the
           // input has a floating label.
           return noLabelFloat ? -4 : 8;
         },
 
         /**
          * Returns false if the element is required and does not have a selection,
          * and true otherwise.
+         * @param {Object} ignored
          * @return {boolean} true if `required` is false, or if `required` is true
          * and the element has a valid selection.
          */
-        _getValidity: function() {
-          return this.disabled || !this.required || (this.required && this.value);
+        _getValidity: function(ignored) {

[imcheng, 2015/12/10 21:37:21]

This function overrides _getValidity from IronValidatableBehavior which takes an
Object param. I had to make this change to get rid of compiler error. Perhaps
changes in this file should be done separately? What's the process?

[Dan Beam, 2015/12/10 23:41:36]

don't change things that get overwritten every time we roll polymer ;) send them
a PR instead

[imcheng, 2015/12/11 01:14:59]

Acknowledged. It looks like somebody already has a PR but it's not so easy :-\
https://github.com/PolymerElements/paper-dropdown-menu/pull/65

I will leave this here for now but I won't check this in.

+          return this.disabled || !this.required || (this.required && !!this.value);
         },
 
         _openedChanged: function() {
           var openState = this.opened ? 'true' : 'false';
           var e = this.contentElement;
           if (e) {
             e.setAttribute('aria-expanded', openState);
           }
         }
       });
-    })();
+    })();