Adds a modified copy of talk/base to webrtc/base. It is the first step in migrating talk/base to webrtc/base.

BUG=N/A
R=andrew@webrtc.org, wu@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/12199004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6107 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/base/socketaddresspair.h

@@ -0,0 +1,41 @@
+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_BASE_SOCKETADDRESSPAIR_H__
+#define WEBRTC_BASE_SOCKETADDRESSPAIR_H__
+
+#include "webrtc/base/socketaddress.h"
+
+namespace rtc {
+
+// Records a pair (source,destination) of socket addresses.  The two addresses
+// identify a connection between two machines.  (For UDP, this "connection" is
+// not maintained explicitly in a socket.)
+class SocketAddressPair {
+public:
+  SocketAddressPair() {}
+  SocketAddressPair(const SocketAddress& srs, const SocketAddress& dest);
+
+  const SocketAddress& source() const { return src_; }
+  const SocketAddress& destination() const { return dest_; }
+
+  bool operator ==(const SocketAddressPair& r) const;
+  bool operator <(const SocketAddressPair& r) const;
+
+  size_t Hash() const;
+
+private:
+  SocketAddress src_;
+  SocketAddress dest_;
+};
+
+} // namespace rtc
+
+#endif // WEBRTC_BASE_SOCKETADDRESSPAIR_H__