Update Polymer components.

third_party/polymer/components/iron-resizable-behavior/iron-resizable-behavior.html

 <!--
 @license
 Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
 This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
 The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
 Code distributed by Google as part of the polymer project is also
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@@ skipping 22 matching lines @@
     properties: {
       /**
        * The closest ancestor element that implements `IronResizableBehavior`.
        */
       _parentResizable: {
         type: Object,
         observer: '_parentResizableChanged'
       },
 
       /**
-       * True if this element is currently notifying its descedant elements of
+       * True if this element is currently notifying its descendant elements of
        * resize.
        */
       _notifyingDescendant: {
         type: Boolean,
         value: false
       }
     },
 
     listeners: {
       'iron-request-resize-notifications': '_onIronRequestResizeNotifications'
@@ skipping 78 matching lines @@
      * @return {boolean} True if the `element` should be notified of resize.
      */
     resizerShouldNotify: function(element) { return true; },
 
     _onDescendantIronResize: function(event) {
       if (this._notifyingDescendant) {
         event.stopPropagation();
         return;
       }
 
-      // NOTE(cdata): In ShadowDOM, event retargetting makes echoing of the
+      // NOTE(cdata): In ShadowDOM, event retargeting makes echoing of the
       // otherwise non-bubbling event "just work." We do it manually here for
       // the case where Polymer is not using shadow roots for whatever reason:
       if (!Polymer.Settings.useShadow) {
         this._fireResize();
       }
     },
 
     _fireResize: function() {
       this.fire('iron-resize', null, {
         node: this,
@@ skipping 33 matching lines @@
         return;
       }
 
       this._notifyingDescendant = true;
       descendant.notifyResize();
       this._notifyingDescendant = false;
     }
   };
 </script>