network: Move MaxSize attribute from QueueBase to derived classes

src/network/utils/queue.cc

@@ -36,12 +36,6 @@ QueueBase::GetTypeId (void)
   static TypeId tid = TypeId ("ns3::QueueBase")
     .SetParent<Object> ()
     .SetGroupName ("Network")
-    .AddAttribute ("MaxSize",
-                   "The max queue size",
-                   QueueSizeValue (QueueSize ("100p")),
-                   MakeQueueSizeAccessor (&QueueBase::SetMaxSize,
-                                          &QueueBase::GetMaxSize),
-                   MakeQueueSizeChecker ())
     .AddTraceSource ("PacketsInQueue",
                      "Number of packets currently stored in the queue",
                      MakeTraceSourceAccessor (&QueueBase::m_nPackets),
@@ -67,6 +61,7 @@ QueueBase::QueueBase () :
   m_nTotalDroppedPacketsAfterDequeue (0)
 {
   NS_LOG_FUNCTION (this);
+  m_maxSize = QueueSize (QueueSizeUnit::PACKETS, std::numeric_limits<uint32_t>::max ());
 }
 
 QueueBase::~QueueBase ()