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

third_party/polymer/v0_8/components/paper-behaviors/paper-button-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
 subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
 -->
 
 <link rel="import" href="../polymer/polymer.html">
 <link rel="import" href="../iron-behaviors/iron-button-state.html">
 
 <script>
 
-  Polymer.PaperButtonElevation = {
+  /** @polymerBehavior */
+  Polymer.PaperButtonBehaviorImpl = {
 
     properties: {
 
       _elevation: {
         type: Number
       }
 
     },
 
+    observers: [
+      '_calculateElevation(focused, disabled, active, pressed, receivedFocusFromKeyboard)'
+    ],
+
+    hostAttributes: {
+      role: 'button',
+      tabindex: '0'
+    },
+
     _calculateElevation: function() {
       var e = 1;
-      if (this.disabled || !this.raised) {
+      if (this.disabled) {
         e = 0;
       } else if (this.active || this.pressed) {
-        e = 2;
-      } else if (this.focused) {
+        e = 4;
+      } else if (this.receivedFocusFromKeyboard) {
         e = 3;
       }
       this._elevation = e;
     }
-
   };
 
   Polymer.PaperButtonBehavior = [
+    Polymer.IronButtonState,
     Polymer.IronControlState,
-    Polymer.IronButtonState,
-    Polymer.PaperButtonElevation
+    Polymer.PaperButtonBehaviorImpl
   ];
 
 </script>