Add QuicStream and friends to QUIC code.

net/quic/quic_crypto_stream.cc

Index: net/quic/quic_crypto_stream.cc
diff --git a/net/quic/quic_crypto_stream.cc b/net/quic/quic_crypto_stream.cc
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index 0000000000000000000000000000000000000000..64c02eecff4440ab370aa4b4583dfb521811709d
--- /dev/null
+++ b/net/quic/quic_crypto_stream.cc
@@ -0,0 +1,46 @@
+// 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/quic/quic_crypto_stream.h"
+#include "net/quic/quic_session.h"
+
+using base::StringPiece;
+
+namespace net {
+
+QuicCryptoStream::QuicCryptoStream(QuicSession* session)
+    : ReliableQuicStream(kCryptoStreamId, session),
+      handshake_complete_(false) {
+  crypto_framer_.set_visitor(this);
+}
+
+void QuicCryptoStream::OnError(CryptoFramer* framer) {
+  session()->ConnectionClose(framer->error(), false);
+}
+
+uint32 QuicCryptoStream::ProcessData(const char* data,
+                                     uint32 data_len) {
+  // Do not process handshake messages after the handshake is complete.
+  if (handshake_complete()) {
+    CloseConnection(QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE);
+    return 0;
+  }
+  if (!crypto_framer_.ProcessInput(StringPiece(data, data_len))) {
+    CloseConnection(crypto_framer_.error());
+    return 0;
+  }
+  return data_len;
+}
+
+void QuicCryptoStream::CloseConnection(QuicErrorCode error) {
+  session()->connection()->SendConnectionClose(error);
+}
+
+void QuicCryptoStream::SendHandshakeMessage(
+    const CryptoHandshakeMessage& message) {
+  scoped_ptr<QuicData> data(crypto_framer_.ConstructHandshakeMessage(message));
+  WriteData(string(data->data(), data->length()), false);
+}
+
+}  // namespace net