Add an extra pixel to the distance field path renderer bounds.

BUG=chromium:663701
BUG=skia:5989

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=5086

Change-Id: Ie97f46b108f54c711c5928b11a9921be38356f8d
Reviewed-on: https://skia-review.googlesource.com/5086
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
1 file changed