[third_party] add polymer 1.2.3

polymer_1.2.3/bower_components/paper-menu/paper-menu.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="../iron-menu-behavior/iron-menu-behavior.html">
-<link rel="import" href="../paper-styles/paper-styles.html">
+<link rel="import" href="../paper-styles/default-theme.html">
+<link rel="import" href="../paper-styles/color.html">
+<link rel="import" href="paper-menu-shared-styles.html">
 
 <!--
+Material design: [Menus](https://www.google.com/design/spec/components/menus.html)
+
 `<paper-menu>` implements an accessible menu control with Material Design styling. The focused item
 is highlighted, and the selected item has bolded text.
 
     <paper-menu>
       <paper-item>Item 1</paper-item>
       <paper-item>Item 2</paper-item>
     </paper-menu>
 
+An initial selection can be specified with the `selected` attribute.
+
+    <paper-menu selected="0">
+      <paper-item>Item 1</paper-item>
+      <paper-item>Item 2</paper-item>
+    </paper-menu>
+
 Make a multi-select menu with the `multi` attribute. Items in a multi-select menu can be deselected,
-and multiple item can be selected.
+and multiple items can be selected.
 
     <paper-menu multi>
       <paper-item>Item 1</paper-item>
       <paper-item>Item 2</paper-item>
     </paper-menu>
 
 ### Styling
 
 The following custom properties and mixins are available for styling:
 
 Custom property | Description | Default
 ----------------|-------------|----------
 `--paper-menu-background-color`   | Menu background color                                            | `--primary-background-color`
-`-paper-menu-color`               | Menu foreground color                                            | `--primary-text-color`
+`--paper-menu-color`              | Menu foreground color                                            | `--primary-text-color`
 `--paper-menu-disabled-color`     | Foreground color for a disabled item                             | `--disabled-text-color`
 `--paper-menu`                    | Mixin applied to the menu                                        | `{}`
 `--paper-menu-selected-item`      | Mixin applied to the selected item                               | `{}`
 `--paper-menu-focused-item`       | Mixin applied to the focused item                                | `{}`
 `--paper-menu-focused-item-after` | Mixin applied to the ::after pseudo-element for the focused item | `{}`
 
 ### Accessibility
 
 `<paper-menu>` has `role="menu"` by default. A multi-select menu will also have
 `aria-multiselectable` set. It implements key bindings to navigate through the menu with the up and
 down arrow keys, esc to exit the menu, and enter to activate a menu item. Typing the first letter
 of a menu item will also focus it.
 
 @group Paper Elements
 @element paper-menu
 @hero hero.svg
 @demo demo/index.html
 -->
 
 <dom-module id="paper-menu">
+  <template>
+    <style include="paper-menu-shared-styles"></style>
+    <style>
+      :host {
+        display: block;
+        padding: 8px 0;
 
-  <style>
+        background: var(--paper-menu-background-color, --primary-background-color);
+        color: var(--paper-menu-color, --primary-text-color);
 
-    :host {
-      display: block;
-      padding: 8px 0;
+        @apply(--paper-menu);
+      }
+    </style>
 
-      background: var(--paper-menu-background-color, --primary-background-color);
-      color: var(--paper-menu-color, --primary-text-color);
-
-      @apply(--paper-menu);
-    }
-
-    /* need a wrapper element to make this higher specificity than the :host rule in paper-item */
-    .content > ::content > .iron-selected {
-      font-weight: bold;
-
-      @apply(--paper-menu-selected-item);
-    }
-
-    .content > ::content > [disabled] {
-      color: var(--paper-menu-disabled-color, --disabled-text-color);
-    }
-
-    .content > ::content > *:focus {
-      position: relative;
-      outline: 0;
-
-      @apply(--paper-menu-colored-focused-item);
-    }
-
-    .content > ::content > *:focus:after {
-      @apply(--layout-fit);
-      background: currentColor;
-      /* FIXME move to paper-styles for next widget */
-      opacity: 0.12;
-      content: '';
-
-      @apply(--paper-menu-colored-focused-item-after);
-    }
-
-    .content > ::content > *[colored]:focus:after {
-      opacity: 0.26;
-    }
-
-  </style>
-
-  <template>
-
-    <div class="content">
+    <div class="selectable-content">
       <content></content>
     </div>
-
   </template>
 
+  <script>
+    (function() {
+      Polymer({
+        is: 'paper-menu',
+
+        behaviors: [
+          Polymer.IronMenuBehavior
+        ]
+      });
+    })();
+  </script>
 </dom-module>
-
-<script>
-
-(function() {
-
-  Polymer({
-
-    is: 'paper-menu',
-
-    behaviors: [
-      Polymer.IronMenuBehavior
-    ]
-
-  });
-
-})();
-
-</script>