Various formatting cleanups to net/quic/core/frames

net/quic/core/frames/quic_stop_waiting_frame.h

 // Copyright (c) 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_CORE_FRAMES_QUIC_STOP_WAITING_FRAME_H_
 #define NET_QUIC_CORE_FRAMES_QUIC_STOP_WAITING_FRAME_H_
 
+#include <ostream>
+
 #include "net/quic/core/quic_types.h"
 #include "net/quic/platform/api/quic_export.h"
 
 namespace net {
 
 struct QUIC_EXPORT_PRIVATE QuicStopWaitingFrame {
   QuicStopWaitingFrame();
   ~QuicStopWaitingFrame();
 
   friend QUIC_EXPORT_PRIVATE std::ostream& operator<<(
       std::ostream& os,
       const QuicStopWaitingFrame& s);
+
   // Path which this stop waiting frame belongs to.
   QuicPathId path_id;
   // The lowest packet we've sent which is unacked, and we expect an ack for.
   QuicPacketNumber least_unacked;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CORE_FRAMES_QUIC_STOP_WAITING_FRAME_H_