Fixing flakiness of TestDetectUnresolvedProxy.

webrtc/base/autodetectproxy.h

 /*
  *  Copyright 2004 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 52 matching lines @@
   // SignalThread Interface
   void DoWork() override;
   void OnMessage(Message* msg) override;
 
   void Next();
   void Complete(ProxyType type);
 
   void OnConnectEvent(AsyncSocket * socket);
   void OnReadEvent(AsyncSocket * socket);
   void OnCloseEvent(AsyncSocket * socket, int error);
+  void OnTimeout();
   void OnResolveResult(AsyncResolverInterface* resolver);
   bool DoConnect();
 
  private:
   std::string agent_;
   std::string server_url_;
   ProxyInfo proxy_;
   AsyncResolverInterface* resolver_;
   AsyncSocket* socket_;
   int next_;
 
   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(AutoDetectProxy);
 };
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_AUTODETECTPROXY_H_