Draw the perpendiculars of the curve with the stroke width. See Cary's SampleQuadStroker.cpp for what we are attempting to mimic. BUG=589769,skia:5405,skia:5406 GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2218773003 Review-Url: https://codereview.chromium.org/2218773003
Already exists as a sampleapp, but sampleapps don't get tested automatically BUG=skia:5405,5406,chrome:589769 GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2161633002 Review-Url: https://codereview.chromium.org/2161633002