The major change is that choose pattern and confirm pattern layouts
no longer uses a split screen layout on tablets. The new layout
closely mimics the layout for portrait.
Other minor changes include:
-Made the header font size for confirm pattern and choose pattern
medium (this matches with face unlock changes).
-Made the buttons on choose pattern for landscape phone side-by-side
rather than above each other (to be consistent with face unlock).
-Removed the black background from phone landscape confirm pattern
since it's inconsistent with all the other layouts.
Change-Id: I4473fe880ac471a3b5bc5399a454b10504589f87
This fix updates the style for buttons to better conform to the screen
by using weightSums.
It also makes layouts much more flexible across platforms by making
better use of the square aspect feature of LockPatternView.
Change-Id: I63677790bf0ac52707c8c356540ecd5dc50ca33b
