Add static domain security state generator tool.

net/tools/domain_security_preload_generator/pinset.cc

+// Copyright (c) 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 "net/tools/domain_security_preload_generator/pinset.h"
+
+namespace net {
+
+Pinset::Pinset(std::string name, std::string report_uri)
+    : name_(name), report_uri_(report_uri) {}
+
+Pinset::~Pinset() {}
+
+void Pinset::AddStaticSPKIHash(const std::string& hash_name) {
+  static_spki_hashes_.push_back(hash_name);
+}
+
+void Pinset::AddBadStaticSPKIHash(const std::string& hash_name) {
+  bad_static_spki_hashes_.push_back(hash_name);
+}
+
+}  // namespace net