Update Polymer from 1.2.1 -> 1.2.3

third_party/polymer/v1_0/components-chromium/paper-menu/paper-menu-shared-styles.html

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 @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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-<dom-module id="paper-item-shared-styles">
+<dom-module id="paper-menu-shared-styles">
   <template>
     <style>
-      :host {
-        display: block;
-        min-height: var(--paper-item-min-height, 48px);
-        padding: 0px 16px;
+      /* need a wrapper element to make this higher specificity than the :host rule in paper-item */
+      .selectable-content > ::content > .iron-selected {
+        font-weight: bold;
+
+        @apply(--paper-menu-selected-item);
       }
 
-      :host(.iron-selected) {
-        font-weight: var(--paper-item-selected-weight, bold);
-        @apply(--paper-item-selected);
+      .selectable-content > ::content > [disabled] {
+        color: var(--paper-menu-disabled-color, --disabled-text-color);
       }
 
-      :host([disabled]) {
-        color: var(--paper-item-disabled-color, --disabled-text-color);
-        @apply(--paper-item-disabled);
+      .selectable-content > ::content > *:focus {
+        position: relative;
+        outline: 0;
+
+        @apply(--paper-menu-focused-item);
       }
 
-      :host(:focus) {
-        position: relative;
-        outline: 0;
-        @apply(--paper-item-focused);
+      .selectable-content > ::content > *:focus:after {
+        @apply(--layout-fit);
+        background: currentColor;
+        opacity: var(--dark-divider-opacity);
+        content: '';
+
+        @apply(--paper-menu-focused-item-after);
       }
 
-      :host(:focus):before {
-        @apply(--layout-fit);
-        content: '';
-        background: currentColor;
-        opacity: var(--dark-divider-opacity);
-
-        @apply(--paper-item-focused-before);
+      .selectable-content > ::content > *[colored]:focus:after {
+        opacity: 0.26;
       }
     </style>
   </template>
 </dom-module>