Change to optimize QUIC's RetransmittableFrames::HasCryptoHandshake by

net/quic/quic_protocol.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_QUIC_QUIC_PROTOCOL_H_
 #define NET_QUIC_QUIC_PROTOCOL_H_
 
 #include <stddef.h>
 #include <limits>
 #include <map>
@@ skipping 981 matching lines @@
   ~RetransmittableFrames();
 
   // Allocates a local copy of the referenced StringPiece has QuicStreamFrame
   // use it.
   // Takes ownership of |stream_frame|.
   const QuicFrame& AddStreamFrame(QuicStreamFrame* stream_frame);
   // Takes ownership of the frame inside |frame|.
   const QuicFrame& AddNonStreamFrame(const QuicFrame& frame);
   const QuicFrames& frames() const { return frames_; }
 
-  IsHandshake HasCryptoHandshake() const;
+  IsHandshake HasCryptoHandshake() const {
+    return has_crypto_handshake_;
+  }
 
   void set_encryption_level(EncryptionLevel level);
   EncryptionLevel encryption_level() const {
     return encryption_level_;
   }
 
  private:
   QuicFrames frames_;
   EncryptionLevel encryption_level_;
+  IsHandshake has_crypto_handshake_;
   // Data referenced by the StringPiece of a QuicStreamFrame.
   std::vector<std::string*> stream_data_;
 
   DISALLOW_COPY_AND_ASSIGN(RetransmittableFrames);
 };
 
 struct NET_EXPORT_PRIVATE SerializedPacket {
   SerializedPacket(QuicPacketSequenceNumber sequence_number,
                    QuicSequenceNumberLength sequence_number_length,
                    QuicPacket* packet,
@@ skipping 41 matching lines @@
   // Stores the sequence numbers of all transmissions of this packet.
   // Can never be null.
   SequenceNumberSet* all_transmissions;
   // In flight packets have not been abandoned or lost.
   bool in_flight;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_PROTOCOL_H_