Initial support for HTTP/2 dependencies and weights

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 541 matching lines @@
   bool probable_http_response() const { return probable_http_response_; }
 
   SpdyStreamId expect_continuation() const { return expect_continuation_; }
 
   SpdyPriority GetLowestPriority() const {
     return spdy_version_ < SPDY3 ? 3 : 7;
   }
 
   SpdyPriority GetHighestPriority() const { return 0; }
 
+  // Interpolates SpdyPriority values into SPDY4/HTTP2 priority weights,
+  // and vice versa.
+  uint8 MapPriorityToWeight(SpdyPriority priority);
+  SpdyPriority MapWeightToPriority(uint8 weight);
+
   // Deliver the given control frame's compressed headers block to the visitor
   // in decompressed form, in chunks. Returns true if the visitor has
   // accepted all of the chunks.
   bool IncrementallyDecompressControlFrameHeaderData(
       SpdyStreamId stream_id,
       const char* data,
       size_t len);
 
  protected:
   // TODO(jgraettinger): Switch to test peer pattern.
@@ skipping 220 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_