Rename net::ct::LogEntry to SignedEntryData and clarify the comment.

net/cert/signed_certificate_timestamp.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_CERT_SIGNED_CERTIFICATE_TIMESTAMP_H_
 #define NET_CERT_SIGNED_CERTIFICATE_TIMESTAMP_H_
 
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
 #include "net/base/hash_value.h"
 #include "net/base/net_export.h"
 
 namespace base {
 class Pickle;
 class PickleIterator;
 }
 
 namespace net {
 
 // Structures related to Certificate Transparency (RFC6962).
 namespace ct {
 
-// LogEntry struct in RFC 6962, Section 3.1
-struct NET_EXPORT LogEntry {
+// Contains the data necessary to reconstruct the signed_entry of a
+// SignedCertificateTimestamp, from RFC 6962, Section 3.2.
+//
+// All the data necessary to validate a SignedCertificateTimestamp is present
+// within the SignedCertificateTimestamp, except for the signature_type,
+// entry_type, and the actual entry. The only supported signature_type at
+// present is certificate_timestamp.  The entry_type is implicit from the
+// context in which it is received (those in the X.509 extension are
+// precert_entry, all others are x509_entry). The signed_entry itself is
+// reconstructed from the certificate being verified, or from the corresponding
+// precertificate.
+//
+// The SignedEntryData contains this reconstructed data, and can be used to
+// either generate or verify the signature in SCTs.
+struct NET_EXPORT SignedEntryData {
   // LogEntryType enum in RFC 6962, Section 3.1
   enum Type {
     LOG_ENTRY_TYPE_X509 = 0,
     LOG_ENTRY_TYPE_PRECERT = 1
   };
 
-  LogEntry();
-  ~LogEntry();
+  SignedEntryData();
+  ~SignedEntryData();
   void Reset();
 
   Type type;
 
   // Set if type == LOG_ENTRY_TYPE_X509
   std::string leaf_certificate;
 
   // Set if type == LOG_ENTRY_TYPE_PRECERT
   SHA256HashValue issuer_key_hash;
   std::string tbs_certificate;
@@ skipping 83 matching lines @@
   ~SignedCertificateTimestamp();
 
   DISALLOW_COPY_AND_ASSIGN(SignedCertificateTimestamp);
 };
 
 }  // namespace ct
 
 }  // namespace net
 
 #endif  // NET_CERT_SIGNED_CERTIFICATE_TIMESTAMP_H_