SPDY4: SpdySession should send SETTINGS acknowledgements.

net/spdy/spdy_test_util_common.h

 // Copyright (c) 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_SPDY_SPDY_TEST_UTIL_COMMON_H_
 #define NET_SPDY_SPDY_TEST_UTIL_COMMON_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 348 matching lines @@
       SpdyStreamId associated_stream_id) const;
 
   // Construct an expected SPDY reply string from the given headers.
   std::string ConstructSpdyReplyString(const SpdyHeaderBlock& headers) const;
 
   // Construct an expected SPDY SETTINGS frame.
   // |settings| are the settings to set.
   // Returns the constructed frame.  The caller takes ownership of the frame.
   SpdyFrame* ConstructSpdySettings(const SettingsMap& settings) const;
 
+  // Constructs an expected SPDY SETTINGS acknowledgement frame, if the protocol
+  // version is SPDY4 or higher, or an empty placeholder frame otherwise.
+  SpdyFrame* ConstructSpdySettingsAck() const;
+
   // Construct a SPDY PING frame.
   // Returns the constructed frame.  The caller takes ownership of the frame.
   SpdyFrame* ConstructSpdyPing(uint32 ping_id, bool is_ack) const;
 
   // Construct a SPDY GOAWAY frame with last_good_stream_id = 0.
   // Returns the constructed frame.  The caller takes ownership of the frame.
   SpdyFrame* ConstructSpdyGoAway() const;
 
   // Construct a SPDY GOAWAY frame with the specified last_good_stream_id.
   // Returns the constructed frame.  The caller takes ownership of the frame.
@@ skipping 156 matching lines @@
       base::StringPiece url,
       int64* content_length) const;
 
   const NextProto protocol_;
   const SpdyMajorVersion spdy_version_;
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_SPDY_TEST_UTIL_COMMON_H_