commit 289a2a73aa2642075105c699bac996cb34c65661
author Brian Osman <brianosman@google.com> Wed Apr 25 09:56:45 2018 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Wed Apr 25 14:15:11 2018 +0000
tree b3faf6eb20559e7c801c4a05f3accd526002e34e
parent e19e9b9418405e14169a6e4e500150432fcc57c4

Reject parametric curves with negative A, C, D, or G

Skia had even more validation, and our inversion code does some
additional checking, but for something that's used a a source, this is
the minimum to make sense (and not trigger asserts in our approximate
pow implementation).

Bug: chromium:836634
Change-Id: I7984aa7c6fa372f3010eb404bb917a9d8a804f1f
Reviewed-on: https://skia-review.googlesource.com/123623
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>