Make CFX_WideString::FromUTF8() take a CFX_ByteStringC argument.

testing/libfuzzer/pdf_fm2js_fuzzer.cc

Index: testing/libfuzzer/pdf_fm2js_fuzzer.cc
diff --git a/testing/libfuzzer/pdf_fm2js_fuzzer.cc b/testing/libfuzzer/pdf_fm2js_fuzzer.cc
index 0a5f6d64ae248dea8de0a6602e3f1a72970f4468..c3e51cf28e9d17e371b487fcf55aa48d61d39e00 100644
--- a/testing/libfuzzer/pdf_fm2js_fuzzer.cc
+++ b/testing/libfuzzer/pdf_fm2js_fuzzer.cc
@@ -14,7 +14,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
     return 0;
 
   CFX_WideString input = CFX_WideString::FromUTF8(
-      reinterpret_cast<const char*>(data), static_cast<FX_STRSIZE>(size));
+      CFX_ByteStringC(data, static_cast<FX_STRSIZE>(size)));
   CXFA_FMProgram program;
   if (program.Init(input.AsWideStringC()) || program.ParseProgram())
     return 0;