Add Skia/SkiaPaths expectations for some pixel tests.

This CL adds some Skia/SkiaPaths expectations which have acceptable
graphic rendering discrepancies compared to their AGG expectations.

Bug: pdfium:1702
Change-Id: Idf0c243f1cb6370a71b2b5ea20806f01bc371ed4
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/86970
Commit-Queue: Hui Yingst <nigi@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/testing/resources/pixel/axial_shading_point_at_border_no_extend_expected_skia.pdf.0.png b/testing/resources/pixel/axial_shading_point_at_border_no_extend_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/bug_1015233_expected_skia.pdf.0.png b/testing/resources/pixel/bug_1015233_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/bug_1015233_expected_skiapaths.pdf.0.png b/testing/resources/pixel/bug_1015233_expected_skiapaths.pdf.0.png
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diff --git a/testing/resources/pixel/bug_1236_expected_skia.pdf.0.png b/testing/resources/pixel/bug_1236_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/bug_1258968_expected_skia.pdf.0.png b/testing/resources/pixel/bug_1258968_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/bug_1258968_expected_skiapaths.pdf.0.png b/testing/resources/pixel/bug_1258968_expected_skiapaths.pdf.0.png
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diff --git a/testing/resources/pixel/bug_1288_2_expected_skia.pdf.0.png b/testing/resources/pixel/bug_1288_2_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/bug_1330_expected_skia.pdf.0.png b/testing/resources/pixel/bug_1330_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/bug_1638_expected_skia.pdf.0.png b/testing/resources/pixel/bug_1638_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/bug_660850_expected_skia.pdf.0.png b/testing/resources/pixel/bug_660850_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/bug_714187_expected_skia.pdf.0.png b/testing/resources/pixel/bug_714187_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/bug_984811_expected_skia.pdf.0.png b/testing/resources/pixel/bug_984811_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/matte_expected_skia.pdf.0.png b/testing/resources/pixel/matte_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/radial_shading_point_at_border_no_extend_expected_skia.pdf.0.png b/testing/resources/pixel/radial_shading_point_at_border_no_extend_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/radial_shading_point_at_center_expected_skia.pdf.0.png b/testing/resources/pixel/radial_shading_point_at_center_expected_skia.pdf.0.png
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