MD User Manager: Hover and Focus states for the custodian accounts dropdown

chrome/browser/resources/md_user_manager/create_profile.html

 <link rel="import" href="chrome://md-user-manager/icons.html">
 <link rel="import" href="chrome://md-user-manager/import_supervised_user.html">
 <link rel="import" href="chrome://md-user-manager/profile_browser_proxy.html">
 <link rel="import" href="chrome://md-user-manager/shared_styles.html">
 <link rel="import" href="chrome://resources/html/action_link.html">
 <link rel="import" href="chrome://resources/html/cr.html">
 <link rel="import" href="chrome://resources/html/i18n_behavior.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/html/util.html">
 <link rel="import" href="chrome://resources/html/web_ui_listener_behavior.html">
@@ skipping 108 matching lines @@
       }
 
       #supervised-user-container paper-listbox paper-item {
         --paper-item: {
           font-size: inherit;
           min-height: 40px;
         };
         --paper-item-selected: {
           font-weight: normal;
         };
+        --paper-item-focused: {
+          background: rgba(0, 0, 0, .12);
+        }

[michaelpg, 2016/05/19 16:12:17]

;

[Moe, 2016/05/19 17:25:04]

Done.

+        --paper-item-focused-before: {
+          background: none;
+        };
       }
 
+      #supervised-user-container paper-listbox paper-item:hover {
+        background: rgba(0, 0, 0, .12);
+      };
+
       #supervised-user-container #import-user {
         -webkit-margin-start: 16px;
       }
 
       #supervised-user-container #sign-in-howto-message {
         margin-top: 12px;
       }
 
       #actions {
         bottom: 16px;
@@ skipping 74 matching lines @@
         <paper-button id="save" class="action primary" on-tap="onSaveTap_"
             disabled="[[isSaveDisabled_(createInProgress_, profileName_)]]">
           $i18n{createProfileConfirm}
         </paper-button>
       </div>
       <import-supervised-user id="importUserPopup"></import-supervised-user>
     </div>
   </template>
   <script src="chrome://md-user-manager/create_profile.js"></script>
 </dom-module>