Fix vertical margins for the 'profiles-single-message' element.

chrome/browser/resources/options2/browser_options.html

 <div id="settings" class="page" hidden>
   <header>
     <h1 i18n-content="settingsTitle"></h1>
     <span id="browser-options-search-field-container"
         class="search-field-container">
       <input id="search-field" type="search"
           i18n-values="placeholder:searchPlaceholder;
                        aria-label:searchPlaceholder" incremental>
     </span>
   </header>
@@ skipping 210 matching lines @@
         <button id="customize-sync" i18n-content="customizeSync" hidden>
         </button>
         <button id="manage-accounts-button"
             i18n-content="manageAccountsButtonTitle">
         </button>
       </div>
     </div>
 </if>
     <div id="profiles-section" hidden>
       <list id="profiles-list" class="settings-list" hidden></list>
-      <div id="profiles-single-message" i18n-content="profilesSingleUser">
+      <div id="profiles-single-message" class="settings-row"
+          i18n-content="profilesSingleUser">
       </div>
       <div id="profiles-buttons">
         <button id="profiles-create" i18n-content="profilesCreate"></button>
         <button id="profiles-manage" i18n-content="profilesManage" disabled>
         </button>
         <button id="profiles-delete" i18n-content="profilesDelete"></button>
 <if expr="not pp_ifdef('chromeos')">
         <button id="import-data" i18n-content="importData"></button>
 </if>
       </div>
@@ skipping 375 matching lines @@
   </section>
 </if>
 </div>  <!-- advanced-settings-container -->
 </div>  <!-- advanced-settings -->
 <footer>
   <button id="advanced-settings-expander" class="link-button"
       i18n-content="showAdvancedSettings">
   </button>
 </footer>
 </div>