Revert of Landing Recent QUIC changes until Sat Apr 29 00:22:04 2017 +0000

net/quic/core/frames/quic_window_update_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_WINDOW_UPDATE_FRAME_H_
 #define NET_QUIC_CORE_FRAMES_QUIC_WINDOW_UPDATE_FRAME_H_
 
 #include <ostream>
 
 #include "net/quic/core/quic_types.h"
 #include "net/quic/platform/api/quic_export.h"
 
 namespace net {
 
-// Flow control updates per-stream and at the connection level.
+// Flow control updates per-stream and at the connection levoel.
 // Based on SPDY's WINDOW_UPDATE frame, but uses an absolute byte offset rather
 // than a window delta.
 // TODO(rjshade): A possible future optimization is to make stream_id and
 //                byte_offset variable length, similar to stream frames.
 struct QUIC_EXPORT_PRIVATE QuicWindowUpdateFrame {
   QuicWindowUpdateFrame() {}
   QuicWindowUpdateFrame(QuicStreamId stream_id, QuicStreamOffset byte_offset);
 
   friend QUIC_EXPORT_PRIVATE std::ostream& operator<<(
       std::ostream& os,
       const QuicWindowUpdateFrame& w);
 
   // The stream this frame applies to.  0 is a special case meaning the overall
   // connection rather than a specific stream.
   QuicStreamId stream_id;
 
   // Byte offset in the stream or connection. The receiver of this frame must
   // not send data which would result in this offset being exceeded.
   QuicStreamOffset byte_offset;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CORE_FRAMES_QUIC_WINDOW_UPDATE_FRAME_H_