MD Settings: Show password tooltip for full URL.

chrome/browser/resources/settings/passwords_and_forms_page/passwords_section.html

 <link rel="import" href="chrome://resources/cr_elements/cr_action_menu/cr_action_menu.html">
 <link rel="import" href="chrome://resources/cr_elements/icons.html">
 <link rel="import" href="chrome://resources/html/action_link.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/html/i18n_behavior.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-list/iron-list.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button.html">
 <link rel="import" href="../controls/settings_toggle_button.html">
 <link rel="import" href="../controls/extension_controlled_indicator.html">
 <link rel="import" href="../controls/settings_toggle_button.html">
@@ skipping 89 matching lines @@
         <div class="password-column">
           $i18n{editPasswordPasswordLabel}
         </div>
       </div>
       <iron-list id="passwordList"
           items="[[getFilteredPasswords_(savedPasswords, filter)]]"
           class="vertical-list list-with-header"
           scroll-target="[[subpageScrollTarget]]">
         <template>
           <div class="list-item">
-            <div class="website-column no-min-width">
+            <div class="website-column no-min-width" title="[[item.linkUrl]]">
               <a id="originUrl" target="_blank" class="selectable no-min-width"
                   href="[[item.linkUrl]]">
                 <span class="text-elide">
                   [[item.loginPair.originUrl]]
                 </span>
               </a>
             </div>
             <div class="username-column selectable text-elide"
                 id="username">[[item.loginPair.username]]</div>
             <div class="password-column">
@@ skipping 44 matching lines @@
         </div>
       </template>
       <div id="noExceptionsLabel" class="list-item"
           hidden$="[[hasSome_(passwordExceptions)]]">
         $i18n{noExceptionsFound}
       </div>
     </div>
   </template>
   <script src="passwords_section.js"></script>
 </dom-module>