Add a fuzzer test for the Clear-Site-Data header.

content/test/fuzzer/clear_site_data_fuzzer.cc

+// Copyright 2016 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 <vector>
+
+#include "content/browser/browsing_data/clear_site_data_throttle.h"
+
+namespace content {
+
+class ClearSiteDataFuzzerTest {
+ public:
+  ClearSiteDataFuzzerTest() : throttle_(nullptr) {}
+
+  void TestHeader(const std::string& header) {
+    bool remove_cookies;
+    bool remove_storage;
+    bool remove_cache;
+    std::vector<content::ClearSiteDataThrottle::ConsoleMessage> messages;
+
+    throttle_.ParseHeader(header, &remove_cookies, &remove_storage,
+                          &remove_cache, &messages);
+  }
+
+ private:
+  content::ClearSiteDataThrottle throttle_;
+};
+
+ClearSiteDataFuzzerTest* test = new ClearSiteDataFuzzerTest();
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  test->TestHeader(std::string(reinterpret_cast<const char*>(data), size));
+  return 0;
+}
+
+}  // namespace content