[Extensions] Extension Port Ids and Initialization 2.0

extensions/common/api/messaging/port_id.cc

Index: extensions/common/api/messaging/port_id.cc
diff --git a/extensions/common/api/messaging/port_id.cc b/extensions/common/api/messaging/port_id.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d5fb017418365a92ed6570409bd7ea4a2c901b24
--- /dev/null
+++ b/extensions/common/api/messaging/port_id.cc
@@ -0,0 +1,29 @@
+// 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 "extensions/common/api/messaging/port_id.h"
+
+#include <tuple>
+
+namespace extensions {
+
+PortId::PortId() {}
+PortId::PortId(const std::string& context_id, int port_number, bool is_opener)
+    : context_id(context_id), port_number(port_number), is_opener(is_opener) {}
+PortId::~PortId() {}
+PortId::PortId(PortId&& other) = default;
+PortId::PortId(const PortId& other) = default;
+PortId& PortId::operator=(const PortId& other) = default;
+
+bool PortId::operator==(const PortId& other) const {
+  return context_id == other.context_id && port_number == other.port_number &&
+         is_opener == other.is_opener;
+}
+
+bool PortId::operator<(const PortId& other) const {
+  return std::tie(context_id, port_number, is_opener) <
+         std::tie(other.context_id, other.port_number, other.is_opener);
+}
+
+}  // namespace extensions