Track when QUIC connections are application limited. Protected by quic_enable_app_limited_check.

net/quic/core/quic_sent_packet_manager_interface.h

 // 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 NET_QUIC_QUIC_SENT_PACKET_MANAGER_INTERFACE_H_
 #define NET_QUIC_QUIC_SENT_PACKET_MANAGER_INTERFACE_H_
 
 #include "base/macros.h"
 #include "net/quic/core/quic_protocol.h"
 #include "net/quic/core/quic_sustained_bandwidth_recorder.h"
@@ skipping 167 matching lines @@
 
   virtual void SetNetworkChangeVisitor(NetworkChangeVisitor* visitor) = 0;
 
   // Returns true if the default path is in slow start.
   virtual bool InSlowStart() const = 0;
 
   // These two methods return the consecutive RTO or TLP count of the default
   // path.
   virtual size_t GetConsecutiveRtoCount() const = 0;
   virtual size_t GetConsecutiveTlpCount() const = 0;
+
+  // Signals to the congestion controller that the connection has no outstanding
+  // data to send.
+  virtual void OnApplicationLimited() = 0;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_SENT_PACKET_MANAGER_INTERFACE_H_