Position color glyphs correctly in path fallback.

This is a simpler version of dfd9c79566306f86bd2c69b0bba9a448f158da2d.

Bug: chromium:913057
Change-Id: I25daaa85ba30e56c4dfb1fc678cad4c31eda2764
Reviewed-on: https://skia-review.googlesource.com/c/177802
Reviewed-by: Herb Derby <herb@google.com>
1 file changed