Optimize setting padding and backgrounds for views

Don't reset the entire chain of child views whenever we set our own
padding or background; clear our own bidi resolution bits only. This
prevents doing a lot of extra recursive work when changing properties
of a parent view that cannot affect children.

Bug 18159214

Change-Id: I94300402785c79c3199e768ad7b6d7027d8d5d5f
2 files changed