Reland of Mark the Certly.io log as disqualified, as of April 15 2016

net/cert/ct_known_logs.h

Index: net/cert/ct_known_logs.h
diff --git a/net/cert/ct_known_logs.h b/net/cert/ct_known_logs.h
index 48904c2cc54771c4a0da73a8e9c622cc850222fe..cbc4b2c6fb2b62807fc25d04fa32135c112ebdd7 100644
--- a/net/cert/ct_known_logs.h
+++ b/net/cert/ct_known_logs.h
@@ -12,6 +12,10 @@
 #include "build/build_config.h"
 #include "net/base/net_export.h"
 
+namespace base {
+class Time;
+}  // namespace base
+
 namespace net {
 
 class CTLogVerifier;
@@ -20,12 +24,25 @@
 
 #if !defined(OS_NACL)
 // CreateLogVerifiersForKnownLogs returns a vector of CT logs for all the known
-// and trusted logs.
+// logs. This set includes logs that are presently qualified for inclusion and
+// logs which were previously qualifying, but have since been disqualified. To
+// determine the status of a given log, use |IsLogDisqualified()|.
 NET_EXPORT std::vector<scoped_refptr<const CTLogVerifier>>
 CreateLogVerifiersForKnownLogs();
 #endif
 
+// Returns true if the log identified by |log_id| (the SHA-256 hash of the
+// log's DER-encoded SPKI) is operated by Google.
 NET_EXPORT bool IsLogOperatedByGoogle(base::StringPiece log_id);
+
+// Returns true if the log identified by |log_id| (the SHA-256 hash of the
+// log's DER-encoded SPKI) has been disqualified, and sets
+// |*disqualification_date| to the date of disqualification. Any SCTs that
+// are embedded in certificates issued after |*disqualification_date| should
+// not be trusted, nor contribute to any uniqueness or freshness
+// requirements.
+NET_EXPORT bool IsLogDisqualified(base::StringPiece log_id,
+                                  base::Time* disqualification_date);
 
 }  // namespace ct