Add an SignedCertificateTimetampStore, making SignedCertificateTimestamp be refcounted to aid.

net/cert/signed_certificate_timestamp.cc

Index: net/cert/signed_certificate_timestamp.cc
diff --git a/net/cert/signed_certificate_timestamp.cc b/net/cert/signed_certificate_timestamp.cc
index 0be511d41dbb64cde0fe151d0ee41f40e664eb3d..d801315703b8e3ea18be30813c9a2de093ee1345 100644
--- a/net/cert/signed_certificate_timestamp.cc
+++ b/net/cert/signed_certificate_timestamp.cc
@@ -8,6 +8,30 @@ namespace net {
 
 namespace ct {
 
+bool SignedCertificateTimestamp::LessThan::operator()(
+    const scoped_refptr<SignedCertificateTimestamp>& lhs,
+    const scoped_refptr<SignedCertificateTimestamp>& rhs) const {
+  if (lhs.get() == rhs.get())
+    return false;
+  if (lhs->signature.signature_data < rhs->signature.signature_data)
+    return true;
+  if (lhs->signature.signature_data == rhs->signature.signature_data) {
+    if (lhs->log_id < rhs->log_id)
+     return true;
+    if (lhs->log_id == rhs->log_id) {
+      if (lhs->timestamp < rhs->timestamp)
+        return true;
+      if (lhs->timestamp == rhs->timestamp) {
+        if (lhs->extensions < rhs->extensions)
+          return true;
+        if (lhs->extensions == rhs->extensions)
+          return lhs->version < rhs->version;
+      }
+    }
+  }
+  return false;

[wtc, 2013/11/21 03:13:47]

Thanks for implementing this.

This is more complicated than I expected. Perhaps we should code it this way:

  if (lhs.get() == rhs.get())
    return false;
  if (lhs->signature.signature_data != rhs->signature.signature_data)
    return lhs->signature.signature_data < rhs->signature.signature_data;
  if (lhs->log_id != rhs->log_id)
    return lhs->log_id < rhs->log_id;
  if (lhs->timestamp != rhs->timestamp)
    return lhs->timestamp < rhs->timestamp;
  ...
  return lhs->version < rhs->version;

[alcutter, 2013/11/21 10:56:39]

That's a much more pleasing way of doing it, thanks.
Done.

+}
+
 SignedCertificateTimestamp::SignedCertificateTimestamp() {}
 
 SignedCertificateTimestamp::~SignedCertificateTimestamp() {}