Clarify settings UI in multi-profiles mode

chrome/browser/resources/options/language_options.html

 <div id="languagePage" class="page" hidden>
   <div class="close-button"></div>
   <h1 i18n-content="languagePage"></h1>
   <div class="content-area">
     <div id="notification">
       <span>&nbsp;</span>
       <span class="link"><span class="link-color"></span></span>
     </div>
     <div class="language-options-header">
       <span i18n-content="addLanguageInstructions"></span>
@@ skipping 14 matching lines @@
         </div>
         <div id="language-options-list-dropmarker"></div>
       </div>
       <div id="language-options-details">
         <h3 id="language-options-language-name"></h3>
 <if expr="os == 'win32' or pp_ifdef('chromeos')">
         <div class="language-options-contents">
           <button id="language-options-ui-language-button"
               i18n-content="displayInThisLanguage">
           </button>
+          <span class="controlled-setting-indicator"></span>
           <span id="language-options-ui-language-message" hidden></span>
         </div>
 </if>
 <!-- Chrome uses the native OS spellchecker in OS X, so don't display the
      dictionary pane. -->
 <if expr="not is_macosx">
         <div id="language-options-spellcheck" class="language-options-contents">
           <button id="language-options-spell-check-language-button"
               i18n-content="useThisForSpellChecking">
           </button>
@@ skipping 84 matching lines @@
 </if>
     </div>
   </div>
   <div class="action-area">
     <div class="button-strip">
       <button id="language-confirm" class="default-button" i18n-content="done">
       </button>
     </div>
   </div>
 </div>