Let QUIC respect HTTP2 Settings frame. Currently, only SETTINGS_HEADER_TABLE_SIZE is supported. Pro…

net/quic/quic_headers_stream.h

 // Copyright 2013 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_QUIC_HEADERS_STREAM_H_
 #define NET_QUIC_QUIC_HEADERS_STREAM_H_
 
 #include <stddef.h>
 
 #include <memory>
 
 #include "base/macros.h"
 #include "net/base/net_export.h"
 #include "net/quic/quic_header_list.h"
 #include "net/quic/quic_protocol.h"
 #include "net/quic/reliable_quic_stream.h"
 #include "net/spdy/spdy_framer.h"
 
 namespace net {
 
 class QuicSpdySession;
 
+namespace test {
+class QuicHeadersStreamPeer;
+}  // namespace test
+
 // Headers in QUIC are sent as HTTP/2 HEADERS or PUSH_PROMISE frames
 // over a reserved reliable stream with the id 3.  Each endpoint
 // (client and server) will allocate an instance of QuicHeadersStream
 // to send and receive headers.
 class NET_EXPORT_PRIVATE QuicHeadersStream : public ReliableQuicStream {
  public:
   class NET_EXPORT_PRIVATE HpackDebugVisitor {
    public:
     HpackDebugVisitor();
 
@@ skipping 35 matching lines @@
 
   // Experimental: force HPACK to use static table and huffman coding
   // only.  Part of exploring improvements related to headers stream
   // induced HOL blocking in QUIC.
   void DisableHpackDynamicTable();
 
   // Optional, enables instrumentation related to go/quic-hpack.
   void SetHpackEncoderDebugVisitor(std::unique_ptr<HpackDebugVisitor> visitor);
   void SetHpackDecoderDebugVisitor(std::unique_ptr<HpackDebugVisitor> visitor);
 
+  // Sets the maximum size of the header compression table spdy_framer_ is
+  // willing to use to decode header blocks.
+  void UpdateHeaderEncoderTableSize(uint32_t value);
+
   // Sets how much encoded data the hpack decoder of spdy_framer_ is willing to
   // buffer.
   void set_max_decode_buffer_size_bytes(size_t max_decode_buffer_size_bytes) {
     spdy_framer_.set_max_decode_buffer_size_bytes(max_decode_buffer_size_bytes);
   }
 
  private:
+  friend class test::QuicHeadersStreamPeer;
+
   class SpdyFramerVisitor;
 
   // The following methods are called by the SimpleVisitor.
 
   // Called when a HEADERS frame has been received.
   void OnHeaders(SpdyStreamId stream_id,
                  bool has_priority,
                  SpdyPriority priority,
                  bool fin);
 
@@ skipping 48 matching lines @@
 
   // Either empty, or contains the complete list of headers.
   QuicHeaderList header_list_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicHeadersStream);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_HEADERS_STREAM_H_