Add skia/skiapaths expected results for pixel tests.

Some pixel tests are rendered correctly with either Skia or SkiaPaths
enabled, but the rendering results have small discrepancies compared to
their AGG expectations. This CL adds their correct expectations for both
Skia and SkiaPaths so that these tests can pass.

Bug: pdfium:1702
Change-Id: I4b3c41203666968a90e452287b7b879e5dc54f4f
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/82978
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Hui Yingst <nigi@chromium.org>
diff --git a/testing/resources/pixel/bug_972999_expected_skia.pdf.0.png b/testing/resources/pixel/bug_972999_expected_skia.pdf.0.png
new file mode 100644
index 0000000..8a6b8ed
--- /dev/null
+++ b/testing/resources/pixel/bug_972999_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/checkbox_radiobutton_expected_skia.pdf.0.png b/testing/resources/pixel/checkbox_radiobutton_expected_skia.pdf.0.png
new file mode 100644
index 0000000..fe713a6
--- /dev/null
+++ b/testing/resources/pixel/checkbox_radiobutton_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/combobox_form_expected_skia.pdf.0.png b/testing/resources/pixel/combobox_form_expected_skia.pdf.0.png
new file mode 100644
index 0000000..04adcf0
--- /dev/null
+++ b/testing/resources/pixel/combobox_form_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/xfa_specific/xfa_jpg_image_expected_skia.pdf.0.png b/testing/resources/pixel/xfa_specific/xfa_jpg_image_expected_skia.pdf.0.png
new file mode 100644
index 0000000..70dcd8e
--- /dev/null
+++ b/testing/resources/pixel/xfa_specific/xfa_jpg_image_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/xfa_specific/xfa_png_image_expected_skia.pdf.0.png b/testing/resources/pixel/xfa_specific/xfa_png_image_expected_skia.pdf.0.png
new file mode 100644
index 0000000..2f77624
--- /dev/null
+++ b/testing/resources/pixel/xfa_specific/xfa_png_image_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/xfa_specific/xfa_rectangle_node_expected_skia.pdf.0.png b/testing/resources/pixel/xfa_specific/xfa_rectangle_node_expected_skia.pdf.0.png
new file mode 100644
index 0000000..99cee53
--- /dev/null
+++ b/testing/resources/pixel/xfa_specific/xfa_rectangle_node_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/xfa_specific/xfa_tiff_image_expected_skia.pdf.0.png b/testing/resources/pixel/xfa_specific/xfa_tiff_image_expected_skia.pdf.0.png
new file mode 100644
index 0000000..2f77624
--- /dev/null
+++ b/testing/resources/pixel/xfa_specific/xfa_tiff_image_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/xfa_specific/xfa_tiff_lzw_image_expected_skia.pdf.0.png b/testing/resources/pixel/xfa_specific/xfa_tiff_lzw_image_expected_skia.pdf.0.png
new file mode 100644
index 0000000..2f77624
--- /dev/null
+++ b/testing/resources/pixel/xfa_specific/xfa_tiff_lzw_image_expected_skia.pdf.0.png
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diff --git a/testing/resources/pixel/xfa_specific/xfa_tiff_packbits_image_expected_skia.pdf.0.png b/testing/resources/pixel/xfa_specific/xfa_tiff_packbits_image_expected_skia.pdf.0.png
new file mode 100644
index 0000000..2f77624
--- /dev/null
+++ b/testing/resources/pixel/xfa_specific/xfa_tiff_packbits_image_expected_skia.pdf.0.png
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