Suppress failed corpus tests

Bug: pdfium:1855
Change-Id: Ie92c32280cb90c2c49960c110aea43a8df93b471
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/102550
Commit-Queue: Nigi <nigi@chromium.org>
Reviewed-by: K. Moon <kmoon@chromium.org>
diff --git a/testing/SUPPRESSIONS b/testing/SUPPRESSIONS
index 0fc8bc5..c6c2794 100644
--- a/testing/SUPPRESSIONS
+++ b/testing/SUPPRESSIONS
@@ -170,6 +170,10 @@
 en_foxit.pdf mac * * *
 en_fqa2.pdf mac * * *
 en_introduce.pdf mac * * *
+
+# TODO(pdfium:1856): Remove after associated bug is fixed
+en_tem.pdf * * * skia
+
 en_tem.pdf mac * * *
 en_uicase_.pdf mac * * *
 event.change.pdf mac * * *
@@ -389,6 +393,10 @@
 path_9.pdf mac * * *
 percentage.pdf mac * * *
 push_button.pdf * * * *
+
+# TODO(pdfium:1960): Remove after associated bug is fixed
+quick_start_guide.pdf * * * skia
+
 quick_start_guide.pdf mac * * *
 radio_button.pdf * * * *
 run_custom_validate_script.pdf * * * *
@@ -408,6 +416,9 @@
 transformation.pdf mac * * *
 transparent.pdf mac * * *
 
+# TODO(pdfium:1856): Remove after associated bug is fixed
+whats_new_in_v3.0.pdf * * * skia
+
 whats_new_in_v3.0.pdf mac * * *
 widget_javascript.pdf mac * * *