Move SkTypeface::CreateXXX to SkTypeface::MakeXXX.

Skia is moving to returning smart pointers from its factory methods.
This updates uses of SkTypeface::CreateXXX to SkTypeface::MakeXXX and
generally updates use of SkTypeface to sk_sp. This will allow for the
removal of the SK_SUPPORT_LEGACY_TYPEFACE_PTR define.

Change-Id: I017ceb681d2c338e6913aa267915d03a7d3a898b