Update options UI to display "/special/drive/root" as "Google Drive".

We are introducing a new namespace "root". The "My Drive" root will be represented as
"/special/drive/root".

BUG=174233,218221
TEST=Open options UI


Review URL: https://chromiumcodereview.appspot.com/12790013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@192572 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/options/browser_options.js

@@ -869,7 +869,7 @@ cr.define('options', function() {
         // /home/chronos/user/Downloads with Downloads for local files.
         // Also replace '/' with ' \u203a ' (angled quote sign) everywhere.
         var path = $('downloadLocationPath').value;
-        path = path.replace(/^\/special\/drive/, 'Google Drive');
+        path = path.replace(/^\/special\/drive\/root/, 'Google Drive');
         path = path.replace(/^\/home\/chronos\/user\//, '');
         path = path.replace(/\//g, ' \u203a ');
         $('downloadLocationPath').value = path;