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

net/tools/quic/test_tools/quic_test_server.cc

Index: net/tools/quic/test_tools/quic_test_server.cc
diff --git a/net/tools/quic/test_tools/quic_test_server.cc b/net/tools/quic/test_tools/quic_test_server.cc
index dc5fc45141d60470c9a63c2549bdff2dfff59e52..8ce3cfa65947cb79e26f836fc58e84db4a092912 100644
--- a/net/tools/quic/test_tools/quic_test_server.cc
+++ b/net/tools/quic/test_tools/quic_test_server.cc
@@ -76,8 +76,8 @@ class QuicTestDispatcher : public QuicDispatcher {
   QuicTestDispatcher(const QuicConfig& config,
                      const QuicCryptoServerConfig* crypto_config,
                      const QuicVersionVector& versions,
-                     QuicConnectionHelperInterface* helper)
-      : QuicDispatcher(config, crypto_config, versions, helper),
+                     std::unique_ptr<QuicConnectionHelperInterface> helper)
+      : QuicDispatcher(config, crypto_config, versions, std::move(helper)),
         session_factory_(nullptr),
         stream_factory_(nullptr),
         crypto_stream_factory_(nullptr) {}
@@ -150,8 +150,8 @@ QuicTestServer::QuicTestServer(ProofSource* proof_source,
 QuicDispatcher* QuicTestServer::CreateQuicDispatcher() {
   return new QuicTestDispatcher(
       config(), &crypto_config(), supported_versions(),
-      new QuicEpollConnectionHelper(epoll_server(),
-                                    QuicAllocator::BUFFER_POOL));
+      std::unique_ptr<QuicEpollConnectionHelper>(new QuicEpollConnectionHelper(
+          epoll_server(), QuicAllocator::BUFFER_POOL)));
 }
 
 void QuicTestServer::SetSessionFactory(SessionFactory* factory) {