Rename QuicSession::GetCryptoStream() to GetMutableCryptoStream(). Add a const GetCryptoStream(). M…

net/quic/chromium/quic_chromium_client_session.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.
 //
 // A client specific QuicSession subclass.  This class owns the underlying
 // QuicConnection and QuicConnectionHelper objects.  The connection stores
 // a non-owning pointer to the helper so this session needs to ensure that
 // the helper outlives the connection.
 
 #ifndef NET_QUIC_CHROMIUM_QUIC_CHROMIUM_CLIENT_SESSION_H_
@@ skipping 155 matching lines @@
   void OnWriteError(int error_code) override;
   void OnWriteUnblocked() override;
 
   // QuicSpdySession methods:
   void OnHeadersHeadOfLineBlocking(QuicTime::Delta delta) override;
 
   // QuicSession methods:
   void OnStreamFrame(const QuicStreamFrame& frame) override;
   QuicChromiumClientStream* CreateOutgoingDynamicStream(
       SpdyPriority priority) override;
-  QuicCryptoClientStream* GetCryptoStream() override;
+  const QuicCryptoClientStream* GetCryptoStream() const override;
+  QuicCryptoClientStream* GetMutableCryptoStream() override;
   void CloseStream(QuicStreamId stream_id) override;
   void SendRstStream(QuicStreamId id,
                      QuicRstStreamErrorCode error,
                      QuicStreamOffset bytes_written) override;
   void OnCryptoHandshakeEvent(CryptoHandshakeEvent event) override;
   void OnCryptoHandshakeMessageSent(
       const CryptoHandshakeMessage& message) override;
   void OnCryptoHandshakeMessageReceived(
       const CryptoHandshakeMessage& message) override;
   void OnGoAway(const QuicGoAwayFrame& frame) override;
@@ skipping 223 matching lines @@
   // the current sockets_.size() == the passed in value.
   bool migration_pending_;  // True while migration is underway.
   base::WeakPtrFactory<QuicChromiumClientSession> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicChromiumClientSession);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CHROMIUM_QUIC_CHROMIUM_CLIENT_SESSION_H_