Add full scaling for color emoji.

Bug: skia:7562
Change-Id: If6788a5004fe060b42a4e437f9b8c18459623225
Reviewed-on: https://skia-review.googlesource.com/106821
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
4 files changed