Stop using deprecated/SkPaint-based SkTextBlobBuilder APIs

Convert the only client relying on the old API to the SkFont version.

TBR=

Bug: skia:2664
Change-Id: Ic4420a9e5d43dfc0edf6e4c23229be94e48c3e13
Reviewed-on: https://chromium-review.googlesource.com/c/1347309
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Mike Reed <reed@google.com>
Cr-Commit-Position: refs/heads/master@{#610429}
1 file changed