Add an SignedCertificateTimetampStore, making SignedCertificateTimestamp be refcounted to aid.

net/test/ct_test_util.h

Index: net/test/ct_test_util.h
diff --git a/net/test/ct_test_util.h b/net/test/ct_test_util.h
index f12e144e4244e26a21912226fb459feb9d61a3f9..f65f0fbce091263b199ed5722ad1e9e55cf61fc0 100644
--- a/net/test/ct_test_util.h
+++ b/net/test/ct_test_util.h
@@ -6,11 +6,10 @@
 #define NET_CERT_CT_TEST_UTIL_H_
 
 #include <string>
+#include "base/memory/ref_counted.h"
 
 namespace net {
 
-class X509Certificate;
-
 namespace ct {
 
 struct LogEntry;
@@ -38,10 +37,10 @@ std::string GetTestPublicKey();
 std::string GetTestPublicKeyId();
 
 // SCT for the X509Certificate provided above.
-void GetX509CertSCT(SignedCertificateTimestamp* sct);
+void GetX509CertSCT(scoped_refptr<SignedCertificateTimestamp>* sct);
 
 // SCT for the Precertificate log entry provided above.
-void GetPrecertSCT(SignedCertificateTimestamp* sct);
+void GetPrecertSCT(scoped_refptr<SignedCertificateTimestamp>* sct);
 
 }  // namespace ct