Do not focus the placeholder when searching on chrome://settings/editDictionary
When searching on chrome://settings/editDictionary, the placeholder input field sometimes grabs focus away from the search field. InlineEditableList has functionality to turn this off. This CL turns on this functionality for chrome://settings/editDictionary page.
BUG=162910
Review URL: https://chromiumcodereview.appspot.com/
11316193
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@169946 0039d316-1c4b-4281-b951-d872f2087c98