Bring back SCT_STATUS_INVALID for cached entries

content/common/ssl_status_serialization_unittest.cc

 // Copyright 2015 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.
 
 #include "content/common/ssl_status_serialization.h"
 
 #include "net/ssl/ssl_connection_status_flags.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
@@ skipping 130 matching lines @@
   SSLStatus status;
   SetTestStatus(&status);
   status.sct_statuses.push_back(static_cast<net::ct::SCTVerifyStatus>(100));
   std::string serialized = SerializeSecurityInfo(status);
 
   SSLStatus deserialized;
   ASSERT_FALSE(DeserializeSecurityInfo(serialized, &deserialized));
   EXPECT_PRED2(SSLStatusAreEqual, SSLStatus(), deserialized);
 }
 
+// Test that SCTVerifyStatus INVALID can be deserialized; even though
+// this value is deprecated, it may still appear in previously written
+// disk cache entries. Regression test for https://crbug.com/640296
+TEST(SSLStatusSerializationTest, DeserializeInvalidSCT) {
+  SSLStatus status;
+  SetTestStatus(&status);
+  status.sct_statuses.push_back(
+      static_cast<net::ct::SCTVerifyStatus>(net::ct::SCT_STATUS_INVALID));
+  std::string serialized = SerializeSecurityInfo(status);
+
+  SSLStatus deserialized;
+  ASSERT_TRUE(DeserializeSecurityInfo(serialized, &deserialized));
+  EXPECT_PRED2(SSLStatusAreEqual, status, deserialized);
+}
+
 }  // namespace