Revert 68414 - sync: remove tabstrip and encryption tab from customize UI

BUG=62613
TEST=Set up sync, get to configure screen (second one), note no tabstrip or encryption options.

Review URL: http://codereview.chromium.org/5560008

TBR=tim@chromium.org
Review URL: http://codereview.chromium.org/5662001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@68417 0039d316-1c4b-4281-b951-d872f2087c98