Get bulk advances for SkPDFDevice::internalDrawGlyphRun

Change-Id: Ief7150c5036d0d83c66e7eced76d0e8720170056
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/215427
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Herb Derby <herb@google.com>
1 file changed