Consistently suggest ephemeral port for QUIC client

net/quic/quic_stream_factory.h

 // Copyright (c) 2012 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 NET_QUIC_QUIC_STREAM_FACTORY_H_
 #define NET_QUIC_QUIC_STREAM_FACTORY_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 212 matching lines @@
   std::vector<std::string> cannoncial_suffixes_;
 
   QuicConfig config_;
 
   JobMap active_jobs_;
   JobRequestsMap job_requests_map_;
   RequestMap active_requests_;
 
   base::WeakPtrFactory<QuicStreamFactory> weak_factory_;
 
+  // Each profile will (probably) have a unique port_entropy_ value.  This value
+  // is used to help seed a pseudo-random number generator (PortSuggester) so
+  // that we consistently (within this profile) suggest the same ephemeral port
+  // when we re-connect to any given server/port.  The differences between
+  // profiles (probabalistically) prevent two profiles from colliding in their

[wtc, 2013/12/07 01:03:38]

probabalistically => probablistically

[jar (doing other things), 2013/12/07 03:12:18]

Done.

+  // ephemeral port requests.
+  uint64 port_entropy_;
+
   DISALLOW_COPY_AND_ASSIGN(QuicStreamFactory);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_STREAM_FACTORY_H_