Signed Exchange: Update generate-test-sxgs.sh to use -sctDir

gen-certurl's -sct option is deprecated in
https://github.com/WICG/webpackage/pull/259.

Bug: 803774
Change-Id: I4fbc575366aba978b262418d2cf415121e840099
Reviewed-on: https://chromium-review.googlesource.com/1154745
Commit-Queue: Kunihiko Sakamoto <ksakamoto@chromium.org>
Reviewed-by: Kouhei Ueno <kouhei@chromium.org>
Cr-Commit-Position: refs/heads/master@{#578999}

content/browser/web_package/signed_exchange_handler_unittest.cc

@@ -48,7 +48,12 @@ const int kOutputBufferSize = 4096;
 // "wildcard_example.org.public.pem.cbor" has these dummy data in "ocsp" and
 // "sct" fields.
 constexpr base::StringPiece kDummyOCSPDer = "OCSP";
-constexpr base::StringPiece kDummySCTList = "SCT";
+constexpr char kDummySCTBytes[] = {
+    0x00, 0x05,                // Length of the sct list
+    0x00, 0x03, 'S', 'C', 'T'  // List entry: length and body
+};
+constexpr base::StringPiece kDummySCTList(kDummySCTBytes,
+                                          sizeof(kDummySCTBytes));
 
 std::string GetTestFileContents(base::StringPiece name) {
   base::FilePath path;

content/test/data/sxg/generate-test-sxgs.sh

@@ -15,18 +15,20 @@ for cmd in gen-signedexchange gen-certurl dump-signedexchange; do
 done
 
 tmpdir=$(mktemp -d)
+sctdir=$tmpdir/scts
+mkdir $sctdir
 
 # Make dummy OCSP and SCT data for cbor certificate chains.
-echo -n OCSP >$tmpdir/ocsp; echo -n SCT >$tmpdir/sct
+echo -n OCSP >$tmpdir/ocsp; echo -n SCT >$sctdir/dummy.sct
 
 # Generate the certificate chain of "*.example.org".
 gen-certurl -pem prime256v1-sha256.public.pem \
-  -ocsp $tmpdir/ocsp -sct $tmpdir/sct > test.example.org.public.pem.cbor
+  -ocsp $tmpdir/ocsp -sctDir $sctdir > test.example.org.public.pem.cbor
 
 # Generate the certificate chain of "*.example.org", without
 # CanSignHttpExchangesDraft extension.
 gen-certurl -pem prime256v1-sha256-noext.public.pem \
-  -ocsp $tmpdir/ocsp -sct $tmpdir/sct > test.example.org-noext.public.pem.cbor
+  -ocsp $tmpdir/ocsp -sctDir $sctdir > test.example.org-noext.public.pem.cbor
 
 # Generate the signed exchange file.
 gen-signedexchange \