Reapply "Fix a corpus test failure introduced by commit 84f6a56"

This reverts commit 69925e619335941878cc615867c77dac953efb03.

BUG=pdfium:336
TBR=jun_fang@foxitsoftware.com

Review URL: https://codereview.chromium.org/1559663003 .
diff --git a/fx/other/group_xobject_expected.pdf.0.png b/fx/other/group_xobject_expected.pdf.0.png
index 6c7835c..1676452 100644
--- a/fx/other/group_xobject_expected.pdf.0.png
+++ b/fx/other/group_xobject_expected.pdf.0.png
Binary files differ