Update corpus expectations due to Skia transparency fix

Update Skia rendering expectations so they pass when
https://pdfium-review.googlesource.com/112352 has been applied. Also
add an expectation file for bug_668762.pdf so it passes with GDI + AGG.

Bug: pdfium:2081
Change-Id: I55642ac0848537a7fd61da8140b9ccbfede2ba62
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium_tests/+/112332
Reviewed-by: Nigi <nigi@chromium.org>
diff --git a/fx/mulobj/1/1_10_watermark_expected_skia.pdf.0.png b/fx/mulobj/1/1_10_watermark_expected_skia.pdf.0.png
index 524561d..cd6e054 100644
--- a/fx/mulobj/1/1_10_watermark_expected_skia.pdf.0.png
+++ b/fx/mulobj/1/1_10_watermark_expected_skia.pdf.0.png
Binary files differ
diff --git a/fx/mulobj/1/1_10_watermark_expected_skia_mac.pdf.0.png b/fx/mulobj/1/1_10_watermark_expected_skia_mac.pdf.0.png
index 442dcaa..24261d3 100644
--- a/fx/mulobj/1/1_10_watermark_expected_skia_mac.pdf.0.png
+++ b/fx/mulobj/1/1_10_watermark_expected_skia_mac.pdf.0.png
Binary files differ
diff --git a/pdfium/bug_668762_expected_gdi_agg.pdf.0.png b/pdfium/bug_668762_expected_gdi_agg.pdf.0.png
new file mode 100644
index 0000000..9aeb320
--- /dev/null
+++ b/pdfium/bug_668762_expected_gdi_agg.pdf.0.png
Binary files differ
diff --git a/pdfium/bug_668762_expected_gdi_skia.pdf.0.png b/pdfium/bug_668762_expected_gdi_skia.pdf.0.png
new file mode 100644
index 0000000..3756c8e
--- /dev/null
+++ b/pdfium/bug_668762_expected_gdi_skia.pdf.0.png
Binary files differ
diff --git a/third_party/skia/20180916_098c1355/xfermodes2_expected_skia.pdf.0.png b/third_party/skia/20180916_098c1355/xfermodes2_expected_skia.pdf.0.png
index 28d895e..70928af 100644
--- a/third_party/skia/20180916_098c1355/xfermodes2_expected_skia.pdf.0.png
+++ b/third_party/skia/20180916_098c1355/xfermodes2_expected_skia.pdf.0.png
Binary files differ
diff --git a/third_party/skia/20180916_098c1355/xfermodes3_expected_skia.pdf.0.png b/third_party/skia/20180916_098c1355/xfermodes3_expected_skia.pdf.0.png
index c2f07dd..5263b88 100644
--- a/third_party/skia/20180916_098c1355/xfermodes3_expected_skia.pdf.0.png
+++ b/third_party/skia/20180916_098c1355/xfermodes3_expected_skia.pdf.0.png
Binary files differ
diff --git a/third_party/skia/20180916_098c1355/xfermodes_expected_skia.pdf.0.png b/third_party/skia/20180916_098c1355/xfermodes_expected_skia.pdf.0.png
index bbd9a7e..52909f9 100644
--- a/third_party/skia/20180916_098c1355/xfermodes_expected_skia.pdf.0.png
+++ b/third_party/skia/20180916_098c1355/xfermodes_expected_skia.pdf.0.png
Binary files differ
diff --git a/third_party/tcpdf/example_058_expected_skia.pdf.0.png b/third_party/tcpdf/example_058_expected_skia.pdf.0.png
index 70e0cde..55e40af 100644
--- a/third_party/tcpdf/example_058_expected_skia.pdf.0.png
+++ b/third_party/tcpdf/example_058_expected_skia.pdf.0.png
Binary files differ