[Spellcheck] Turning spelling service on by default. Adding command line flag to turn spelling serv…

chrome/browser/resources/options/browser_options.html

 <div id="settings" class="page" hidden>
   <header>
     <h1 i18n-content="settingsTitle"></h1>
   </header>
 <if expr="not pp_ifdef('chromeos')">
   <include src="sync_section.html">
 </if>
 <if expr="pp_ifdef('chromeos')">
   <section>
     <h3 i18n-content="sectionTitleInternet"></h3>
@@ skipping 283 matching lines @@
             <span class="controlled-setting-indicator"
                 pref="safebrowsing.enabled">
             </span>
           </span>
         </span>
       </div>
 <if expr="pp_ifdef('_google_chrome')">
       <div class="checkbox">
         <span class="controlled-setting-with-label">
           <input id="spelling-enabled-control" type="checkbox"
-              pref="spellcheck.use_spelling_service" dialog-pref>
+              pref="spellcheck.use_spelling_suggestions" dialog-pref>
           <span>
             <label for="spelling-enabled-control" i18n-content="spellingPref">
             </label>
             <span id="spelling-enabled-indicator"
                 class="controlled-setting-indicator"
-                pref="spellcheck.use_spelling_service" dialog-pref>
+                pref="spellcheck.use_spelling_suggestions" dialog-pref>
             </span>
           </span>
         </span>
       </div>
       <div id="metricsReportingSetting" class="checkbox">
         <span class="controlled-setting-with-label">
 <if expr="pp_ifdef('chromeos')">
           <input id="metricsReportingEnabled"
               pref="cros.metrics.reportingEnabled" type="checkbox">
           <span>
@@ skipping 361 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>