Update SPDY4 length field to exclude frame prefix length.

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 <string>
@@ skipping 461 matching lines @@
   size_t GetBlockedSize() const;
   size_t GetPushPromiseMinimumSize() const;
   size_t GetContinuationMinimumSize() const;
 
   // Returns the minimum size a frame can be (data or control).
   size_t GetFrameMinimumSize() const;
 
   // Returns the maximum size a frame can be (data or control).
   size_t GetFrameMaximumSize() const;
 
+  // Returns the maximum size that a control frame can be.
+  size_t GetControlFrameMaximumSize() const;
+
   // Returns the maximum payload size of a DATA frame.
   size_t GetDataFrameMaximumPayload() const;
 
   // For debugging.
   static const char* StateToString(int state);
   static const char* ErrorCodeToString(int error_code);
   static const char* StatusCodeToString(int status_code);
   static const char* FrameTypeToString(SpdyFrameType type);
 
   SpdyMajorVersion protocol_version() const { return spdy_version_; }
@@ skipping 218 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_