Factor QuicCryptoClientStream APIs into QuicCryptoClientStreamBase.

net/tools/quic/quic_client_session.cc

Index: net/tools/quic/quic_client_session.cc
diff --git a/net/tools/quic/quic_client_session.cc b/net/tools/quic/quic_client_session.cc
index 1ee832206fd0f1cb2c89f9b393af93aa5600f40d..f4da1540a523b3ee6a71ef6d4e2f637298e03021 100644
--- a/net/tools/quic/quic_client_session.cc
+++ b/net/tools/quic/quic_client_session.cc
@@ -20,17 +20,19 @@ QuicClientSession::QuicClientSession(const QuicConfig& config,
                                      const QuicServerId& server_id,
                                      QuicCryptoClientConfig* crypto_config)
     : QuicClientSessionBase(connection, config),
-      crypto_stream_(new QuicCryptoClientStream(
-          server_id,
-          this,
-          new ProofVerifyContextChromium(0, BoundNetLog()),
-          crypto_config)),
+      server_id_(server_id),
+      crypto_config_(crypto_config),
       respect_goaway_(true) {
 }
 
 QuicClientSession::~QuicClientSession() {
 }
 
+void QuicClientSession::Initialize() {
+  crypto_stream_.reset(CreateQuicCryptoStream());
+  QuicClientSessionBase::Initialize();
+}
+
 void QuicClientSession::OnProofValid(
     const QuicCryptoClientConfig::CachedState& /*cached*/) {}
 
@@ -61,7 +63,7 @@ QuicSpdyClientStream* QuicClientSession::CreateClientStream() {
   return new QuicSpdyClientStream(GetNextOutgoingStreamId(), this);
 }
 
-QuicCryptoClientStream* QuicClientSession::GetCryptoStream() {
+QuicCryptoClientStreamBase* QuicClientSession::GetCryptoStream() {
   return crypto_stream_.get();
 }
 
@@ -80,5 +82,12 @@ QuicSpdyStream* QuicClientSession::CreateIncomingDynamicStream(
   return nullptr;
 }
 
+QuicCryptoClientStreamBase* QuicClientSession::CreateQuicCryptoStream() {
+  return new QuicCryptoClientStream(
+      server_id_, this, new ProofVerifyContextChromium(0, BoundNetLog()),
+      crypto_config_);
+}
+
 }  // namespace tools
+
 }  // namespace net