Make QuicDispatcher's helper argument be a unique_ptr to make ownership

net/quic/test_tools/mock_quic_dispatcher.h

 // Copyright 2014 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.
 
 #ifndef NET_QUIC_TEST_TOOLS_MOCK_QUIC_DISPATCHER_H_
 #define NET_QUIC_TEST_TOOLS_MOCK_QUIC_DISPATCHER_H_
 
 #include "base/macros.h"
 #include "net/base/ip_endpoint.h"
 #include "net/quic/crypto/quic_crypto_server_config.h"
 #include "net/quic/quic_config.h"
 #include "net/quic/quic_protocol.h"
 #include "net/tools/quic/quic_dispatcher.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace net {
 namespace test {
 
 class MockQuicDispatcher : public QuicDispatcher {
  public:
   MockQuicDispatcher(const QuicConfig& config,
                      const QuicCryptoServerConfig* crypto_config,
-                     QuicConnectionHelperInterface* helper);
+                     std::unique_ptr<QuicConnectionHelperInterface> helper);
 
   ~MockQuicDispatcher() override;
 
   MOCK_METHOD3(ProcessPacket,
                void(const IPEndPoint& server_address,
                     const IPEndPoint& client_address,
                     const QuicReceivedPacket& packet));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockQuicDispatcher);
 };
 
 }  // namespace test
 }  // namespace net
 
 #endif  // NET_QUIC_TEST_TOOLS_MOCK_QUIC_DISPATCHER_H_