Add Expect-CT header parsing

net/http/http_security_headers_expect_ct_fuzzer.cc

Index: net/http/http_security_headers_expect_ct_fuzzer.cc
diff --git a/net/http/http_security_headers_expect_ct_fuzzer.cc b/net/http/http_security_headers_expect_ct_fuzzer.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4eade8be796b98e26def9ba9c419a6b33b2c7836
--- /dev/null
+++ b/net/http/http_security_headers_expect_ct_fuzzer.cc
@@ -0,0 +1,21 @@
+// Copyright 2017 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 <stddef.h>
+#include <stdint.h>
+#include <string>
+
+#include "base/time/time.h"
+#include "net/http/http_security_headers.h"
+#include "url/gurl.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  std::string input(data, data + size);
+  base::TimeDelta max_age;
+  bool enforce;
+  GURL report_uri;
+
+  net::ParseExpectCTHeader(input, &max_age, &enforce, &report_uri);
+  return 0;
+}