Account for HTTP/2 padding in receive windows.

net/spdy/spdy_framer.h

 // Copyright (c) 2012 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_SPDY_SPDY_FRAMER_H_
 #define NET_SPDY_SPDY_FRAMER_H_
 
 #include <list>
 #include <map>
 #include <memory>
@@ skipping 162 matching lines @@
   // |stream_id| The stream receiving data.
   // |data| A buffer containing the data received.
   // |len| The length of the data buffer.
   // When the other side has finished sending data on this stream,
   // this method will be called with a zero-length buffer.
   virtual void OnStreamFrameData(SpdyStreamId stream_id,
                                  const char* data,
                                  size_t len,
                                  bool fin) = 0;
 
+  // Called when padding is received (padding length field or padding octets).
+  // |stream_id| The stream receiving data.
+  // |len| The number of padding octets.
+  virtual void OnStreamPadding(SpdyStreamId stream_id, size_t len) = 0;
+
   // Called when a chunk of header data is available. This is called
   // after OnSynStream, OnSynReply, OnHeaders(), or OnPushPromise.
   // |stream_id| The stream receiving the header data.
   // |header_data| A buffer containing the header data chunk received.
   // |len| The length of the header data buffer. A length of zero indicates
   //       that the header data block has been completely sent.
   // When this function returns true the visitor indicates that it accepted
   // all of the data. Returning false indicates that that an unrecoverable
   // error has occurred, such as bad header data or resource exhaustion.
   virtual bool OnControlFrameHeaderData(SpdyStreamId stream_id,
@@ skipping 605 matching lines @@
   // If a HEADERS frame is followed by a CONTINUATION frame, the FIN/END_STREAM
   // flag is still carried in the HEADERS frame. If it's set, flip this so that
   // we know to terminate the stream when the entire header block has been
   // processed.
   bool end_stream_when_done_;
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_FRAMER_H_