

<link rel="import" href="../polymer/polymer.html">
<link rel="import" href="../iron-fit-behavior/iron-fit-behavior.html">
<link rel="import" href="../iron-resizable-behavior/iron-resizable-behavior.html">
<link rel="import" href="iron-overlay-manager.html">
<link rel="import" href="iron-focusables-helper.html">

<script>
(function() {
  'use strict';

  /** @polymerBehavior */
  Polymer.IronOverlayBehaviorImpl = {

    properties: {

      /**
       * True if the overlay is currently displayed.
       */