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4ffade7c5b
fixes https://github.com/flutter/flutter/issues/156422
tests: AiksTest.GradientOvalStrokeMaskBlurSigmaZero
This filtering needs to happen somewheres. I opted for putting it inside of the AddLinearComponent instead of where it was affected me in the test: 45237cc63f/impeller/geometry/path_builder.cc (L180)
This seems preferable. A tiny line segment should never matter. The rub is that its only happening here. We might want to do this in other places as well. It's equally unimportant to have a tiny curve.
[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
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