Fix destruction order in pdf_codec_jbig2_fuzzer

Bug: chromium:1193209
Change-Id: I3c7157587f878e769d0ad69f9f84d64e2b963b3a
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/78874
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>

testing/fuzzers/pdf_codec_jbig2_fuzzer.cc

diff --git a/testing/fuzzers/pdf_codec_jbig2_fuzzer.cc b/testing/fuzzers/pdf_codec_jbig2_fuzzer.cc
index 000a7b7..a0fd771 100644
--- a/testing/fuzzers/pdf_codec_jbig2_fuzzer.cc
+++ b/testing/fuzzers/pdf_codec_jbig2_fuzzer.cc
@@ -34,8 +34,8 @@
   if (!bitmap->Create(width, height, FXDIB_Format::k1bppRgb))
     return 0;
 
-  Jbig2Context jbig2_context;
   JBig2_DocumentContext document_context;
+  Jbig2Context jbig2_context;
   FXCODEC_STATUS status = Jbig2Decoder::StartDecode(
       &jbig2_context, &document_context, width, height, {data, size}, 1, {}, 0,
       bitmap->GetBuffer(), bitmap->GetPitch(), nullptr);