Upgrade to 1.0 and switch clients to dom-repeat where needed.

third_party/polymer/v0_8/components/iron-behaviors/iron-control-state.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
 subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
 -->
 
 <link rel="import" href="../polymer/polymer.html">
 
 <script>
 
+  /** @polymerBehavior */
+
   Polymer.IronControlState = {
 
     properties: {
 
       /**
        * If true, the element currently has focus.
        *
        * @attribute focused
        * @type boolean
        * @default false
@@ skipping 15 matching lines @@
        */
       disabled: {
         type: Boolean,
         value: false,
         notify: true,
         observer: '_disabledChanged',
         reflectToAttribute: true
       },
 
       _oldTabIndex: {
-        type: String
+        type: Number
       }
     },
 
     observers: [
       '_changedControlState(focused, disabled)'
     ],
 
     listeners: {
       focus: '_focusHandler',
       blur: '_blurHandler'
@@ skipping 30 matching lines @@
     _changedControlState: function() {
       // _controlStateChanged is abstract, follow-on behaviors may implement it
       if (this._controlStateChanged) {
         this._controlStateChanged();
       }
     }
 
   };
 
 </script>