Adds an option item that enables/disables the Spelling service.

chrome/browser/resources/options/advanced_options.html

Index: chrome/browser/resources/options/advanced_options.html
===================================================================
--- chrome/browser/resources/options/advanced_options.html	(revision 110523)
+++ chrome/browser/resources/options/advanced_options.html	(working copy)
@@ -35,8 +35,18 @@
             <span i18n-content="suggestPref"></span>
           </label>
         </div>
+<if expr="pp_ifdef('_google_chrome') and os == 'win32'">
         <div class="checkbox">
           <label>
+            <input id="spellingServiceEnabled"
+                pref="spellcheck.use_spelling_service"
+                metric="Options_UseSpellingCheckbox" type="checkbox">

[csilv, 2011/11/19 01:37:53]

Should the metric be "Options_UseSpellingServiceCheckbox" instead?  (to avoid
confusion with the spelling checker checkbox?)

[Hironori Bono, 2011/11/21 04:44:33]

Done. Thanks for noticing it. :)

+            <span i18n-content="spellingPref"></span>
+          </label>
+        </div>
+</if>
+        <div class="checkbox">
+          <label>
             <input id="dnsPrefetchingEnabled" pref="dns_prefetching.enabled"
                 metric="Options_DnsPrefetchCheckbox" type="checkbox">
             <span i18n-content="networkPredictionEnabledDescription"></span>