Reduce SpdyHeaderBlock copies with move semantics.

net/spdy/buffered_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_BUFFERED_SPDY_FRAMER_H_
 #define NET_SPDY_BUFFERED_SPDY_FRAMER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 197 matching lines @@
   SpdyMajorVersion protocol_version();
   void Reset();
   SpdyFramer::SpdyError error_code() const;
   SpdyFramer::SpdyState state() const;
   bool MessageFullyRead();
   bool HasError();
   SpdySerializedFrame* CreateSynStream(SpdyStreamId stream_id,
                                        SpdyStreamId associated_stream_id,
                                        SpdyPriority priority,
                                        SpdyControlFlags flags,
-                                       const SpdyHeaderBlock* headers);
+                                       SpdyHeaderBlock headers);
   SpdySerializedFrame* CreateSynReply(SpdyStreamId stream_id,
                                       SpdyControlFlags flags,
-                                      const SpdyHeaderBlock* headers);
+                                      SpdyHeaderBlock headers);
   SpdySerializedFrame* CreateRstStream(SpdyStreamId stream_id,
                                        SpdyRstStreamStatus status) const;
   SpdySerializedFrame* CreateSettings(const SettingsMap& values) const;
   SpdySerializedFrame* CreatePingFrame(SpdyPingId unique_id, bool is_ack) const;
   SpdySerializedFrame* CreateGoAway(SpdyStreamId last_accepted_stream_id,
                                     SpdyGoAwayStatus status,
                                     base::StringPiece debug_data) const;
   SpdySerializedFrame* CreateHeaders(SpdyStreamId stream_id,
                                      SpdyControlFlags flags,
                                      int weight,
-                                     const SpdyHeaderBlock* headers);
+                                     SpdyHeaderBlock headers);
   SpdySerializedFrame* CreateWindowUpdate(SpdyStreamId stream_id,
                                           uint32_t delta_window_size) const;
   SpdySerializedFrame* CreateDataFrame(SpdyStreamId stream_id,
                                        const char* data,
                                        uint32_t len,
                                        SpdyDataFlags flags);
   SpdySerializedFrame* CreatePushPromise(SpdyStreamId stream_id,
                                          SpdyStreamId promised_stream_id,
-                                         const SpdyHeaderBlock* headers);
+                                         SpdyHeaderBlock headers);
 
   // Serialize a frame of unknown type.
   SpdySerializedFrame SerializeFrame(const SpdyFrameIR& frame) {
     return spdy_framer_.SerializeFrame(frame);
   }
 
   SpdyPriority GetHighestPriority() const;
 
   size_t GetDataFrameMinimumSize() const {
     return spdy_framer_.GetDataFrameMinimumSize();
@@ skipping 59 matching lines @@
   std::unique_ptr<GoAwayFields> goaway_fields_;
 
   std::unique_ptr<HeaderCoalescer> coalescer_;
 
   DISALLOW_COPY_AND_ASSIGN(BufferedSpdyFramer);
 };
 
 }  // namespace net
 
 #endif  // NET_SPDY_BUFFERED_SPDY_FRAMER_H_