Factor QuicCryptoClientStream APIs into QuicCryptoClientStreamBase.

net/tools/quic/quic_client_session_test.cc

 // 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.
 
 #include "net/tools/quic/quic_client_session.h"
 
 #include <vector>
 
 #include "net/base/ip_endpoint.h"
 #include "net/quic/crypto/aes_128_gcm_12_encrypter.h"
@@ skipping 42 matching lines @@
             connection_,
             QuicServerId(kServerHostname, kPort, PRIVACY_MODE_DISABLED),
             &crypto_config_)) {
     session_->Initialize();
     // Advance the time, because timers do not like uninitialized times.
     connection_->AdvanceTime(QuicTime::Delta::FromSeconds(1));
   }
 
   void CompleteCryptoHandshake() {
     session_->CryptoConnect();
-    CryptoTestUtils::HandshakeWithFakeServer(&helper_, connection_,
-                                             session_->GetCryptoStream());
+    QuicCryptoClientStream* stream =
+        static_cast<QuicCryptoClientStream*>(session_->GetCryptoStream());
+    CryptoTestUtils::HandshakeWithFakeServer(&helper_, connection_, stream);
   }
 
   QuicCryptoClientConfig crypto_config_;
   MockHelper helper_;
   PacketSavingConnection* connection_;
   scoped_ptr<QuicClientSession> session_;
 };
 
 INSTANTIATE_TEST_CASE_P(Tests, ToolsQuicClientSessionTest,
                         ::testing::ValuesIn(QuicSupportedVersions()));
@@ skipping 141 matching lines @@
       PACKET_6BYTE_PACKET_NUMBER, nullptr));
   EXPECT_CALL(*connection_, SendConnectionCloseWithDetails(_, _)).Times(1);
   session_->connection()->ProcessUdpPacket(client_address, server_address,
                                            *packet);
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace tools
 }  // namespace net