GitLab

Add customize-sync as the associatedControl of the sync setup overlay, enabling
the search page to check its contents.

BUG=174043


Review URL: https://chromiumcodereview.appspot.com/12209076

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@182019 0039d316-1c4b-4281-b951-d872f2087c98