Fix the barcode_test.pdf test expectation filename.

TBR=tsepez@chromium.org

Change-Id: I02e504ea9ebee5b843df506bbb554b705a372949
Reviewed-on: https://pdfium-review.googlesource.com/3513
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/xfa_specific/pdfium/barcode_test.pdf.0.png b/xfa_specific/pdfium/barcode_test_expected.pdf.0.png
similarity index 100%
rename from xfa_specific/pdfium/barcode_test.pdf.0.png
rename to xfa_specific/pdfium/barcode_test_expected.pdf.0.png
Binary files differ