Refactor TestClient to use std::unique_ptr, and fix VirtualSocketServerTest leaks.

webrtc/base/proxy_unittest.cc

 /*
  *  Copyright 2009 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 43 matching lines @@
   rtc::AsyncSocket* socket =
       ss()->CreateAsyncSocket(kSocksProxyIntAddr.family(), SOCK_STREAM);
   rtc::AsyncSocksProxySocket* proxy_socket =
       new rtc::AsyncSocksProxySocket(socket, kSocksProxyIntAddr,
                                            "", rtc::CryptString());
   // TODO: IPv6-ize these tests when proxy supports IPv6.
 
   rtc::TestEchoServer server(Thread::Current(),
                                    SocketAddress(INADDR_ANY, 0));
 
-  rtc::AsyncTCPSocket* packet_socket = rtc::AsyncTCPSocket::Create(
-      proxy_socket, SocketAddress(INADDR_ANY, 0), server.address());
+  std::unique_ptr<rtc::AsyncTCPSocket> packet_socket(
+      rtc::AsyncTCPSocket::Create(proxy_socket, SocketAddress(INADDR_ANY, 0),
+                                  server.address()));
   EXPECT_TRUE(packet_socket != nullptr);
-  rtc::TestClient client(packet_socket);
+  rtc::TestClient client(std::move(packet_socket));
 
   EXPECT_EQ(Socket::CS_CONNECTING, proxy_socket->GetState());
   EXPECT_TRUE(client.CheckConnected());
   EXPECT_EQ(Socket::CS_CONNECTED, proxy_socket->GetState());
   EXPECT_EQ(server.address(), client.remote_address());
   client.Send("foo", 3);
   EXPECT_TRUE(client.CheckNextPacket("foo", 3, nullptr));
   EXPECT_TRUE(client.CheckNoPacket());
 }