[third_party] add polymer 1.2.3

polymer_1.2.3/bower_components/paper-behaviors/paper-inky-focus-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">
+<link rel="import" href="paper-ripple-behavior.html">
 
 <script>
 
   /**
    * `Polymer.PaperInkyFocusBehavior` implements a ripple when the element has keyboard focus.
    *
    * @polymerBehavior Polymer.PaperInkyFocusBehavior
    */
   Polymer.PaperInkyFocusBehaviorImpl = {
 
     observers: [
       '_focusedChanged(receivedFocusFromKeyboard)'
     ],
 
     _focusedChanged: function(receivedFocusFromKeyboard) {
-      if (!this.$.ink) {
-        return;
+      if (receivedFocusFromKeyboard) {
+        this.ensureRipple();
       }
+      if (this.hasRipple()) {
+        this._ripple.holdDown = receivedFocusFromKeyboard;
+      }
+    },
 
-      this.$.ink.holdDown = receivedFocusFromKeyboard;
+    _createRipple: function() {
+      var ripple = Polymer.PaperRippleBehavior._createRipple();
+      ripple.id = 'ink';
+      ripple.setAttribute('center', '');
+      ripple.classList.add('circle');
+      return ripple;
     }
 
   };
 
   /** @polymerBehavior Polymer.PaperInkyFocusBehavior */
   Polymer.PaperInkyFocusBehavior = [
     Polymer.IronButtonState,
     Polymer.IronControlState,
+    Polymer.PaperRippleBehavior,
     Polymer.PaperInkyFocusBehaviorImpl
   ];
 
 </script>