TextView setOverlappingRendering must be true when shadows are used.

The updates to the HWUI renderer now require that setOverlappingRendering be
set when shadows are used.  Without this change modifying the alpha of the
TextView will produce incorrect blending results.

Bug: 111381525
Test: Test app in bug
Change-Id: I523c5ef698e8db912dd2ef848eeeffb3465b990a
1 file changed