[Cast] Sanity-check for unbounded queue growth in PacedSender.

media/cast/net/pacing/paced_sender.h

 // Copyright 2014 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 MEDIA_CAST_NET_PACING_PACED_SENDER_H_
 #define MEDIA_CAST_NET_PACING_PACED_SENDER_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 187 matching lines @@
   size_t current_max_burst_size_;
   size_t next_max_burst_size_;
   size_t next_next_max_burst_size_;
   // Number of packets already sent in the current burst.
   size_t current_burst_size_;
   // This is when the current burst ends.
   base::TimeTicks burst_end_;
 
   State state_;
 
+  bool has_reached_upper_bound_once_;
+
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<PacedSender> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PacedSender);
 };
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_NET_PACING_PACED_SENDER_H_