Roll Polymer to 1.3.1

third_party/polymer/v1_0/components-chromium/iron-scroll-target-behavior/iron-scroll-target-behavior-extracted.js

 /**
    * `Polymer.IronScrollTargetBehavior` allows an element to respond to scroll events from a
    * designated scroll target.
    *
    * Elements that consume this behavior can override the `_scrollHandler`
    * method to add logic on the scroll event.
    *
    * @demo demo/scrolling-region.html Scrolling Region
    * @demo demo/document.html Document Element
    * @polymerBehavior
@@ skipping 44 matching lines @@
           window.removeEventListener('scroll', this._boundScrollHandler);
         } else if (this._oldScrollTarget.removeEventListener) {
           this._oldScrollTarget.removeEventListener('scroll', this._boundScrollHandler);
         }
         this._oldScrollTarget = null;
       }
       if (isAttached) {
         // Support element id references
         if (typeof scrollTarget === 'string') {
 
-          var ownerRoot = Polymer.dom(this).getOwnerRoot();
-          this.scrollTarget = (ownerRoot && ownerRoot.$) ?
-              ownerRoot.$[scrollTarget] : Polymer.dom(this.ownerDocument).querySelector('#' + scrollTarget);
+          var host = this.domHost;
+          this.scrollTarget = host && host.$ ? host.$[scrollTarget] : 
+              Polymer.dom(this.ownerDocument).querySelector('#' + scrollTarget);
 
         } else if (this._scrollHandler) {
 
           this._boundScrollHandler = this._boundScrollHandler || this._scrollHandler.bind(this);
           // Add a new listener
           if (scrollTarget === this._doc) {
             window.addEventListener('scroll', this._boundScrollHandler);
             if (this._scrollTop !== 0 || this._scrollLeft !== 0) {
               this._scrollHandler();
             }
@@ skipping 78 matching lines @@
         window.scrollTo(left, window.pageYOffset);
       } else if (this._isValidScrollTarget()) {
         this.scrollTarget.scrollLeft = left;
       }
     },
 
     /**
      * Scrolls the content to a particular place.
      *
      * @method scroll
+     * @param {number} left The left position
      * @param {number} top The top position
-     * @param {number} left The left position
      */
-    scroll: function(top, left) {
+    scroll: function(left, top) {
        if (this.scrollTarget === this._doc) {
-        window.scrollTo(top, left);
+        window.scrollTo(left, top);
       } else if (this._isValidScrollTarget()) {
+        this.scrollTarget.scrollLeft = left;
         this.scrollTarget.scrollTop = top;
-        this.scrollTarget.scrollLeft = left;
       }
     },
 
     /**
      * Gets the width of the scroll target.
      *
      * @type {number}
      */
     get _scrollTargetWidth() {
       if (this._isValidScrollTarget()) {
@@ skipping 16 matching lines @@
 
     /**
      * Returns true if the scroll target is a valid HTMLElement.
      *
      * @return {boolean}
      */
     _isValidScrollTarget: function() {
       return this.scrollTarget instanceof HTMLElement;
     }
   };