pass SkFont, not SkPaint, to SkTextBlobBuilder

TBR=vmpstr

Bug: skia:2664
Change-Id: Ie4d397f2cc3f997abed9c4614a96333f5956c805
Reviewed-on: https://chromium-review.googlesource.com/c/1351819
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612155}
3 files changed