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

net/quic/chromium/quic_chromium_client_session.cc

Index: net/quic/chromium/quic_chromium_client_session.cc
diff --git a/net/quic/chromium/quic_chromium_client_session.cc b/net/quic/chromium/quic_chromium_client_session.cc
index ba6c37c3c5faa43607fac245ee8ce90dc5dfccfb..27818a5c50cfbdd00cc840b36a94c1fc18b1690e 100644
--- a/net/quic/chromium/quic_chromium_client_session.cc
+++ b/net/quic/chromium/quic_chromium_client_session.cc
@@ -561,7 +561,12 @@ QuicChromiumClientSession::CreateOutgoingReliableStreamImpl() {
   return stream;
 }
 
-QuicCryptoClientStream* QuicChromiumClientSession::GetCryptoStream() {
+QuicCryptoClientStream* QuicChromiumClientSession::GetMutableCryptoStream() {
+  return crypto_stream_.get();
+}
+
+const QuicCryptoClientStream* QuicChromiumClientSession::GetCryptoStream()
+    const {
   return crypto_stream_.get();
 }