1 files changed, 47 insertions, 0 deletions
diff --git a/ipc/chromium/src/mojo/core/ports/port_ref.h b/ipc/chromium/src/mojo/core/ports/port_ref.h
new file mode 100644
index 0000000000..0ff0d32fc7
--- /dev/null
+++ b/ipc/chromium/src/mojo/core/ports/port_ref.h
@@ -0,0 +1,47 @@
+// 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.
+
+#ifndef MOJO_CORE_PORTS_PORT_REF_H_
+#define MOJO_CORE_PORTS_PORT_REF_H_
+
+#include "mojo/core/ports/name.h"
+#include "mozilla/RefPtr.h"
+
+namespace mojo {
+namespace core {
+namespace ports {
+
+class Port;
+class PortLocker;
+
+class PortRef {
+ public:
+  ~PortRef();
+  PortRef();
+  PortRef(const PortName& name, RefPtr<Port> port);
+
+  PortRef(const PortRef& other);
+  PortRef(PortRef&& other);
+
+  PortRef& operator=(const PortRef& other);
+  PortRef& operator=(PortRef&& other);
+
+  const PortName& name() const { return name_; }
+
+  bool is_valid() const { return !!port_; }
+
+ private:
+  friend class PortLocker;
+
+  Port* port() const { return port_.get(); }
+
+  PortName name_;
+  RefPtr<Port> port_;
+};
+
+}  // namespace ports
+}  // namespace core
+}  // namespace mojo
+
+#endif  // MOJO_CORE_PORTS_PORT_REF_H_