Update Polymer from 1.2.1 -> 1.2.3

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

 (function() {
     var Utility = {
       distance: function(x1, y1, x2, y2) {
         var xDelta = (x1 - x2);
         var yDelta = (y1 - y2);
 
         return Math.sqrt(xDelta * xDelta + yDelta * yDelta);
       },
 
       now: window.performance && window.performance.now ?
@@ skipping 381 matching lines @@
         },
 
         _boundAnimate: {
           type: Function,
           value: function() {
             return this.animate.bind(this);
           }
         }
       },
 
-      observers: [
-        '_noinkChanged(noink, isAttached)'
-      ],
-
       get target () {
         var ownerRoot = Polymer.dom(this).getOwnerRoot();
         var target;
 
         if (this.parentNode.nodeType == 11) { // DOCUMENT_FRAGMENT_NODE
           target = ownerRoot.host;
         } else {
           target = this.parentNode;
         }
 
         return target;
       },
 
       keyBindings: {
         'enter:keydown': '_onEnterKeydown',
         'space:keydown': '_onSpaceKeydown',
         'space:keyup': '_onSpaceKeyup'
       },
 
       attached: function() {
+        // Set up a11yKeysBehavior to listen to key events on the target,
+        // so that space and enter activate the ripple even if the target doesn't
+        // handle key events. The key handlers deal with `noink` themselves.
+        this.keyEventTarget = this.target;
         this.listen(this.target, 'up', 'uiUpAction');
         this.listen(this.target, 'down', 'uiDownAction');
       },
 
       detached: function() {
         this.unlisten(this.target, 'up', 'uiUpAction');
         this.unlisten(this.target, 'down', 'uiDownAction');
       },
 
       get shouldKeepAnimating () {
@@ skipping 149 matching lines @@
       // effect.
       _holdDownChanged: function(newVal, oldVal) {
         if (oldVal === undefined) {
           return;
         }
         if (newVal) {
           this.downAction();
         } else {
           this.upAction();
         }
-      },
-
-      _noinkChanged: function(noink, attached) {
-        if (attached) {
-          this.keyEventTarget = noink ? this : this.target;
-        }
       }
     });
   })();