Extension Docs: 'unofficial' warning was showing for https urls.

BUG=142727
TBR=yoz@chromium.org

Review URL: https://chromiumcodereview.appspot.com/10834325
Patch from Ernest Delgado <ernestd@google.com>.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@151656 0039d316-1c4b-4281-b951-d872f2087c98

chrome/common/extensions/docs/js/bootstrap.js

@@ -20,7 +20,9 @@ var fileXHREnabled = function() {
 var officialURL = (function() {
   var candidates = [
     'http://code.google.com/chrome/extensions/',
+    'https://code.google.com/chrome/extensions/',
     'http://developer.chrome.com/',
+    'https://developer.chrome.com/',
 
     // TODO(aa): Remove this one once developer.chrome.com is live.
     'http://chrome-apps-doc.appspot.com/'