Add timeout check for connectivity_checker.

chromecast/net/connectivity_checker_impl.h

 // Copyright 2015 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 CHROMECAST_NET_CONNECTIVITY_CHECKER_IMPL_H_
 #define CHROMECAST_NET_CONNECTIVITY_CHECKER_IMPL_H_
 
+#include "base/cancelable_callback.h"
 #include "chromecast/net/connectivity_checker.h"
 #include "net/base/network_change_notifier.h"
 #include "net/url_request/url_request.h"
 
 class GURL;
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
@@ skipping 39 matching lines @@
 
   // Cancels current connectivity checking in progress.
   void Cancel();
 
   // Sets connectivity and alerts observers if it has changed
   void SetConnected(bool connected);
 
   // Called when URL request failed.
   void OnUrlRequestError();
 
+  // Called when URL request timed out.
+  void OnUrlRequestTimeout();
+
   scoped_ptr<GURL> connectivity_check_url_;
   scoped_ptr<net::URLRequestContext> url_request_context_;
   scoped_ptr<net::URLRequest> url_request_;
   const scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   bool connected_;
   // Number of connectivity check errors.
   unsigned int check_errors_;
+  base::CancelableCallback<void()> timeout_;
 
   DISALLOW_COPY_AND_ASSIGN(ConnectivityCheckerImpl);
 };
 
 }  // namespace chromecast
 
 #endif  // CHROMECAST_NET_CONNECTIVITY_CHECKER_IMPL_H_