use points instead of verbs for interpolate

use points instead of verbs for interpolate

R=fmalita@chromium.org
Bug: skia:6782
Change-Id: I2dc7d806b0115374d973568bec2061a69d459573
Reviewed-on: https://skia-review.googlesource.com/112460
Commit-Queue: Cary Clark <caryclark@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
1 file changed