[third_party] add polymer 1.2.3

polymer_1.2.3/bower_components/paper-item/paper-item.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-flex-layout/iron-flex-layout.html">
-<link rel="import" href="../paper-styles/paper-styles.html">
+<link rel="import" href="paper-item-behavior.html">
+<link rel="import" href="paper-item-shared-styles.html">
 
 <!--
-`<paper-item>` is a non-interactive list item. By default, it is a horizontal flexbox.
+Material design: [Lists](https://www.google.com/design/spec/components/lists.html)
+
+`<paper-item>` is an interactive list item. By default, it is a horizontal flexbox.
 
     <paper-item>Item</paper-item>
 
 Use this element with `<paper-item-body>` to make Material Design styled two-line and three-line
 items.
 
     <paper-item>
       <paper-item-body two-line>
         <div>Show your status</div>
         <div secondary>Your status is visible to everyone</div>
       </paper-item-body>
       <iron-icon icon="warning"></iron-icon>
     </paper-item>
 
 ### Styling
 
 The following custom properties and mixins are available for styling:
 
-Custom property | Description | Default
-----------------|-------------|----------
-`--paper-item-min-height` | Minimum height of the item | `48px`
-`--paper-item`            | Mixin applied to the item  | `{}`
+Custom property               | Description                                  | Default
+------------------------------|----------------------------------------------|----------
+`--paper-item-min-height`     | Minimum height of the item                   | `48px`
+`--paper-item`                | Mixin applied to the item                    | `{}`
+`--paper-item-selected-weight`| The font weight of a selected item           | `bold`
+`--paper-item-selected`       | Mixin applied to selected paper-items        | `{}`
+`--paper-item-disabled-color` | The color for disabled paper-items           | `--disabled-text-color`
+`--paper-item-disabled`       | Mixin applied to disabled paper-items        | `{}`
+`--paper-item-focused`        | Mixin applied to focused paper-items         | `{}`
+`--paper-item-focused-before` | Mixin applied to :before focused paper-items | `{}`
 
 ### Accessibility
 
 This element has `role="listitem"` by default. Depending on usage, it may be more appropriate to set
 `role="menuitem"`, `role="menuitemcheckbox"` or `role="menuitemradio"`.
 
     <paper-item role="menuitemcheckbox">
       <paper-item-body>
         Show your status
       </paper-item-body>
       <paper-checkbox></paper-checkbox>
     </paper-item>
 
 @group Paper Elements
 @element paper-item
 @demo demo/index.html
 -->
 
 <dom-module id="paper-item">
+  <template>
+    <style include="paper-item-shared-styles"></style>
+    <style>
+      :host {
+        @apply(--layout-horizontal);
+        @apply(--layout-center);
+        @apply(--paper-font-subhead);
 
-  <link rel="import" type="css" href="paper-item-shared.css">
+        @apply(--paper-item);
+      }
+    </style>
 
-  <style>
-
-    :host {
-      @apply(--layout-horizontal);
-      @apply(--layout-center);
-      @apply(--paper-font-subhead);
-
-      @apply(--paper-item);
-    }
-
-  </style>
-
-  <template>
     <content></content>
   </template>
 
+  <script>
+    Polymer({
+      is: 'paper-item',
+
+      behaviors: [
+        Polymer.PaperItemBehavior
+      ]
+    });
+  </script>
 </dom-module>
-
-<script>
-
-(function() {
-
-  Polymer({
-
-    is: 'paper-item',
-
-    hostAttributes: {
-      role: 'listitem'
-    }
-
-  });
-
-})();
-
-</script>