use SkShaper instead of SkTextBox

Change-Id: Ie96d7f65d5826a664f55adcbba829cef2f8248dc
Reviewed-on: https://skia-review.googlesource.com/106021
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Mike Reed <reed@google.com>
2 files changed