Created attachment 8695028 [details] testcase Using the Mac build from https://treeherder.mozilla.org/#/jobs?repo=try&revision=91dc4f334fc5 (This does NOT reproduce on mozilla-central because bug 1082598 has not landed yet.) gfx/skia/skia/src/core/SkMatrix.cpp:1478: failed assertion "results >= 0"
Filed upstream bug report here: https://bugs.chromium.org/p/skia/issues/detail?id=4718 We'll wait and see if they fix it for now.
Parking with Lee to await the patch.
Assignee: nobody → lsalzman
Upstream fix that we incorporated as of Skia m49 with landing of bug 1246756 seems to have fixed this. Closing this out.
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