Update Polymer components and re-run reproduce.sh

third_party/polymer/v1_0/components/paper-checkbox/paper-checkbox.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
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 <link rel="import" href="../polymer/polymer.html">
 <link rel="import" href="../paper-ripple/paper-ripple.html">
 <link rel="import" href="../paper-styles/default-theme.html">
-<link rel="import" href="../paper-behaviors/paper-radio-button-behavior.html">
+<link rel="import" href="../paper-behaviors/paper-inky-focus-behavior.html">
 
 <!--
 
 `paper-checkbox` is a button that can be either checked or unchecked.  User
 can tap the checkbox to check or uncheck it.  Usually you use checkboxes
 to allow user to select multiple options from a set.  If you have a single
 ON/OFF option, avoid using a single checkbox and use `paper-toggle-button`
 instead.
 
 Example:
@@ skipping 10 matching lines @@
 ----------------|-------------|----------
 `--paper-checkbox-unchecked-color` | Checkbox color when the input is not checked | `--primary-text-color`
 `--paper-checkbox-unchecked-ink-color` | Selected/focus ripple color when the input is not checked | `--primary-text-color`
 `--paper-checkbox-checked-color` | Checkbox color when the input is checked | `--default-primary-color`
 `--paper-checkbox-checked-ink-color` | Selected/focus ripple color when the input is checked | `--default-primary-color`
 `--paper-checkbox-label-color` | Label color | `--primary-text-color`
 
 @demo demo/index.html
 -->
 
-<style is="custom-style">
-  :root {
-    --paper-checkbox-unchecked-color: var(--primary-text-color);
-    --paper-checkbox-unchecked-ink-color: var(--primary-text-color);
-
-    --paper-checkbox-checked-color: var(--default-primary-color);
-    --paper-checkbox-checked-ink-color: var(--default-primary-color);
-
-    --paper-checkbox-label-color: var(--primary-text-color);
-  }
-</style>
-
 <dom-module id="paper-checkbox">
   <link rel="import" type="css" href="paper-checkbox.css">
 
   <template>
 
     <div id="checkboxContainer">
       <paper-ripple id="ink" class="circle" center checked$="[[checked]]"></paper-ripple>
       <div id="checkbox" class$="[[_computeCheckboxClass(checked)]]">
         <div id="checkmark" class$="[[_computeCheckmarkClass(checked)]]"></div>
       </div>
     </div>
 
     <div id="checkboxLabel" aria-hidden="true"><content></content></div>
 
   </template>
 
   <script>
     Polymer({
       is: 'paper-checkbox',
 
       behaviors: [
-        Polymer.PaperRadioButtonBehavior
+        Polymer.PaperInkyFocusBehavior
       ],
 
       hostAttributes: {
         role: 'checkbox',
         'aria-checked': false,
         tabindex: 0
       },
 
       properties: {
         /**
@@ skipping 52 matching lines @@
       _checkedChanged: function(checked) {
         this.setAttribute('aria-checked', this.checked ? 'true' : 'false');
         this.active = this.checked;
         this.fire('iron-change');
       },
 
       _computeCheckboxClass: function(checked) {
         if (checked) {
           return 'checked';
         }
+        return '';
       },
 
       _computeCheckmarkClass: function(checked) {
         if (!checked) {
           return 'hidden';
         }
+        return '';
       }
     })
   </script>
 
 </dom-module>