base

BiDi support for Minikin

This patch plumbs the bidiFlags for the various text drawing and
measurement functions down to Minikin, so that the latter can do layout
in a BiDi-aware manner. With the corresponding changes to Minikin, it
is sufficient to correctly display RTL text in TextViews.

Change-Id: Ie904f297373b9ad418050a474506605c7c127b0f