Add QuicStream and friends to QUIC code.

net/quic/test_tools/quic_test_utils.cc

Index: net/quic/test_tools/quic_test_utils.cc
diff --git a/net/quic/test_tools/quic_test_utils.cc b/net/quic/test_tools/quic_test_utils.cc
index a1c11791530101f0e5256e1fb9b10b10102cbac5..3e3171f6839d323cef2f97890da7589fec9f30d2 100644
--- a/net/quic/test_tools/quic_test_utils.cc
+++ b/net/quic/test_tools/quic_test_utils.cc
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include "net/quic/test_tools/quic_test_utils.h"
+
 #include "net/quic/crypto/crypto_framer.h"
 
 using std::max;
@@ -34,6 +35,16 @@ void FramerVisitorCapturingAcks::OnAckFrame(const QuicAckFrame& frame) {
   frame_ = frame;
 }
 
+MockHelper::MockHelper() {
+}
+
+MockHelper::~MockHelper() {
+}
+
+QuicClock* MockHelper::GetClock() {
+  return &clock_;
+}
+
 MockConnectionVisitor::MockConnectionVisitor() {
 }
 
@@ -156,6 +167,36 @@ QuicPacket* ConstructHandshakePacket(QuicGuid guid, CryptoTag tag) {
   return packet;
 }
 
+MockConnection::MockConnection(QuicGuid guid, IPEndPoint address)
+    : QuicConnection(guid, address, new MockHelper()) {
+}
+
+MockConnection::~MockConnection() {
+}
+
+PacketSavingConnection::PacketSavingConnection(QuicGuid guid,
+                                               IPEndPoint address)
+    : MockConnection(guid, address) {
+}
+
+PacketSavingConnection::~PacketSavingConnection() {
+}
+
+bool PacketSavingConnection::SendPacket(QuicPacketSequenceNumber number,
+                                        QuicPacket* packet,
+                                        bool resend,
+                                        bool force) {
+  packets_.push_back(packet);
+  return true;
+}
+
+MockSession::MockSession(QuicConnection* connection, bool is_server)
+    : QuicSession(connection, is_server) {
+}
+
+MockSession::~MockSession() {
+}
+
 }  // namespace test
 
 }  // namespace net