refactor checking for direct glyph situations

Update the check for situations using the direct glyph drawing
method. Mostly renaming.

Change-Id: I9e2ad8b669e9868b5fffd4864fb4551fec11f19c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/474038
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
1 file changed