Replace non-ASCII characters in pdf_xfa_fdp_fuzzer.cc.

Write them out using hex escape sequences instead.

Bug: chromium:1284681
Change-Id: I578690dfc66c83168fa1b9e64ec397d224616f56
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/88932
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

testing/fuzzers/pdf_xfa_fdp_fuzzer.cc

diff --git a/testing/fuzzers/pdf_xfa_fdp_fuzzer.cc b/testing/fuzzers/pdf_xfa_fdp_fuzzer.cc
index de36fcd..b5dd112 100644
--- a/testing/fuzzers/pdf_xfa_fdp_fuzzer.cc
+++ b/testing/fuzzers/pdf_xfa_fdp_fuzzer.cc
@@ -268,7 +268,7 @@
       "99999999999",
       "A",
       "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA",
-      "ÁÂÃÄÅÆ",
+      "\xc3\x81\xc3\x82\xc3\x83\xc3\x84\xc3\x85\xc3\x86",
       "<a><b></b></a>",
       "&Acirc;",
       "&AElig;&Aacute;&Acirc;&Aacute;",