Basic theming for pattern and password screens. Create subclasses for
ChooseLockPassword and ChooseLockPattern, and copied their XML
layouts.
This CL mainly uses the buttons in the original screens as-is, with a
follow-up CL coming to change to use the nav bar buttons.
Bug: 18482708
Change-Id: I81751f781de633aff23fc68657589360007c235a
This is step one of theming the set-up lock screen flow to match the
setup wizard theme. This shows the general approach of creating a
subclass of both the activity and fragment and overriding methods to
achieve the desired behavior for setup.
ag/594000 is a much more comprehensive change for what the final
change will look like.
Bug: 18482708
Change-Id: Idff34937f39f46a0c488df2cae4c46155b80cab7