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

net/quic/core/quic_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 QuicSession, which demuxes a single connection to individual streams.
 
 #ifndef NET_QUIC_CORE_QUIC_SESSION_H_
 #define NET_QUIC_CORE_QUIC_SESSION_H_
 
 #include <cstddef>
@@ skipping 120 matching lines @@
                              QuicStreamOffset bytes_written);
 
   // Called when the session wants to go away and not accept any new streams.
   void SendGoAway(QuicErrorCode error_code, const std::string& reason);
 
   // Removes the stream associated with 'stream_id' from the active stream map.
   virtual void CloseStream(QuicStreamId stream_id);
 
   // Returns true if outgoing packets will be encrypted, even if the server
   // hasn't confirmed the handshake yet.
-  virtual bool IsEncryptionEstablished();
+  virtual bool IsEncryptionEstablished() const;
 
   // For a client, returns true if the server has confirmed our handshake. For
   // a server, returns true if a full, valid client hello has been received.
-  virtual bool IsCryptoHandshakeConfirmed();
+  virtual bool IsCryptoHandshakeConfirmed() const;
 
   // Called by the QuicCryptoStream when a new QuicConfig has been negotiated.
   virtual void OnConfigNegotiated();
 
   // Called by the QuicCryptoStream when the handshake enters a new state.
   //
   // Clients will call this function in the order:
   //   ENCRYPTION_FIRST_ESTABLISHED
   //   zero or more ENCRYPTION_REESTABLISHED
   //   HANDSHAKE_CONFIRMED
@@ skipping 104 matching lines @@
   // Caller does not own the returned stream.
   // Returns nullptr and does error handling if the stream can not be created.
   virtual QuicStream* CreateIncomingDynamicStream(QuicStreamId id) = 0;
 
   // Create a new stream to handle a locally-initiated stream.
   // Caller does not own the returned stream.
   // Returns nullptr if max streams have already been opened.
   virtual QuicStream* CreateOutgoingDynamicStream(SpdyPriority priority) = 0;
 
   // Return the reserved crypto stream.
-  virtual QuicCryptoStream* GetCryptoStream() = 0;
+  virtual QuicCryptoStream* GetMutableCryptoStream() = 0;
+
+  // Return the reserved crypto stream as a constant pointer.
+  virtual const QuicCryptoStream* GetCryptoStream() const = 0;
 
   // Adds |stream| to the dynamic stream map.
   virtual void ActivateStream(std::unique_ptr<QuicStream> stream);
 
   // Returns the stream ID for a new outgoing stream, and increments the
   // underlying counter.
   QuicStreamId GetNextOutgoingStreamId();
 
   // Returns existing stream with id = |stream_id|. If no such stream exists,
   // and |stream_id| is a peer-created id, then a new stream is created and
@@ skipping 157 matching lines @@
   // The stream id which was last popped in OnCanWrite, or 0, if not under the
   // call stack of OnCanWrite.
   QuicStreamId currently_writing_stream_id_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicSession);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CORE_QUIC_SESSION_H_