We were not initializaing the mWant* members to false.

BUG=468638

Change-Id: I90ef131c930c6f9c31e9bc9cec951c1f91816eb0
Reviewed-on: https://chromium-review.googlesource.com/261047Reviewed-by: Geoff Lang <geofflang@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>