[MD settings] .settings-row.wide and reduce use of flex layout

chrome/browser/resources/settings/site_settings/site_list.html

 <link rel="import" href="chrome://resources/html/assert.html">
 <link rel="import" href="chrome://resources/html/cr/ui/focus_without_ink.html">
 <link rel="import" href="chrome://resources/html/polymer.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/cr_elements/policy/cr_policy_pref_indicator.html">
 <link rel="import" href="chrome://resources/html/web_ui_listener_behavior.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icon/iron-icon.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button.html">
 <link rel="import" href="../i18n_setup.html">
@@ skipping 46 matching lines @@
           $i18n{siteSettingsActionReset}
         </button>
       </dialog>
 
       <div class="list-frame" hidden$="[[hasSites_(sites)]]">
         <div class="list-item secondary">$i18n{noSitesAdded}</div>
       </div>
       <div class="list-frame menu-content vertical-list" id="listContainer">
         <template is="dom-repeat" items="[[sites]]">
           <div class="list-item">
-            <div class="settings-row"
+            <div class="settings-row wide"
                 actionable$="[[enableSiteSettings_]]" on-tap="onOriginTap_">
               <div class="favicon-image"
                   style$="[[computeSiteIcon(item.origin)]]">
               </div>
               <div class="middle no-min-width">
                 <div class="selectable text-elide">[[item.displayName]]</div>
 
                 <!-- This div must not contain extra whitespace. -->
                 <div class="selectable secondary text-elide"
                     id="siteDescription">[[computeSiteDescription_(item)]]</div>
@@ skipping 29 matching lines @@
       </div>
     </div>
     <template is="dom-if" if="[[showEditExceptionDialog_]]" restamp>
       <settings-edit-exception-dialog model="[[actionMenuSite_]]"
           on-close="onEditExceptionDialogClosed_">
       </settings-edit-exception-dialog>
     </template>
   </template>
   <script src="site_list.js"></script>
 </dom-module>