Extracted NetLog class's inner enum types into their own enum classes and

net/cert/multi_log_ct_verifier.cc

Index: net/cert/multi_log_ct_verifier.cc
diff --git a/net/cert/multi_log_ct_verifier.cc b/net/cert/multi_log_ct_verifier.cc
index 7ce6e161d4e1f8909106229c2bd5e7e3bc785c50..5faeb0ff6068a691c7df052e1c6e4a0844591d3d 100644
--- a/net/cert/multi_log_ct_verifier.cc
+++ b/net/cert/multi_log_ct_verifier.cc
@@ -19,6 +19,7 @@
 #include "net/cert/sct_status_flags.h"
 #include "net/cert/x509_certificate.h"
 #include "net/log/net_log.h"
+#include "net/log/net_log_event_type.h"
 
 namespace net {
 
@@ -122,7 +123,7 @@ int MultiLogCTVerifier::Verify(
           &embedded_scts, &sct_list_from_ocsp, &sct_list_from_tls_extension);
 
   net_log.AddEvent(
-      NetLog::TYPE_SIGNED_CERTIFICATE_TIMESTAMPS_RECEIVED,
+      NetLogEventType::SIGNED_CERTIFICATE_TIMESTAMPS_RECEIVED,
       net_log_callback);
 
   ct::LogEntry x509_entry;
@@ -140,7 +141,7 @@ int MultiLogCTVerifier::Verify(
       base::Bind(&NetLogSignedCertificateTimestampCallback, result);
 
   net_log.AddEvent(
-      NetLog::TYPE_SIGNED_CERTIFICATE_TIMESTAMPS_CHECKED,
+      NetLogEventType::SIGNED_CERTIFICATE_TIMESTAMPS_CHECKED,
       net_log_checked_callback);
 
   LogNumSCTsToUMA(*result);