Add test case for a bunch of shading type 7 (and 6) corner cases.
See https://crbug.com/407070894#comment7 for details.
The white holes in the skia baselines related to issue 416702486.
With the diff in comment 1 there, they go away.
Bug: 407070894,416702486
Change-Id: I053c84ce0b040c6cef41081e00caf2c41334a83d
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/131970
Reviewed-by: Nico Weber <thakis@google.com>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
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diff --git a/testing/resources/pixel/shade-tensor_expected.pdf.0.png b/testing/resources/pixel/shade-tensor_expected.pdf.0.png
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diff --git a/testing/resources/pixel/shade-tensor_expected_gdi_skia.pdf.0.png b/testing/resources/pixel/shade-tensor_expected_gdi_skia.pdf.0.png
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index 0000000..52e17a8
--- /dev/null
+++ b/testing/resources/pixel/shade-tensor_expected_gdi_skia.pdf.0.png
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diff --git a/testing/resources/pixel/shade-tensor_expected_skia.pdf.0.png b/testing/resources/pixel/shade-tensor_expected_skia.pdf.0.png
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--- /dev/null
+++ b/testing/resources/pixel/shade-tensor_expected_skia.pdf.0.png
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