[Chromecast] Add metric reporting to ConnectivityCheckerImpl

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 "base/macros.h"
 #include "chromecast/net/connectivity_checker.h"
@@ skipping 47 matching lines @@
       net::NetworkChangeNotifier::ConnectionType type) override;
 
   void OnNetworkChangedInternal();
 
   // Cancels current connectivity checking in progress.
   void Cancel();
 
   // Sets connectivity and alerts observers if it has changed
   void SetConnected(bool connected);
 
+  enum class ErrorType {
+    BAD_HTTP_STATUS = 1,
+    SSL_CERTIFICATE_ERROR = 2,
+    REQUEST_TIMEOUT = 3,
+  };
+
   // Called when URL request failed.
-  void OnUrlRequestError();
+  void OnUrlRequestError(ErrorType type);
 
   // Called when URL request timed out.
   void OnUrlRequestTimeout();
 
   std::unique_ptr<GURL> connectivity_check_url_;
   std::unique_ptr<net::URLRequestContext> url_request_context_;
   std::unique_ptr<net::URLRequest> url_request_;
   const scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   bool connected_;
   net::NetworkChangeNotifier::ConnectionType connection_type_;
   // Number of connectivity check errors.
   unsigned int check_errors_;
   bool network_changed_pending_;
   // Timeout handler for connectivity checks.
   // Note: Cancelling this timeout can cause the destructor for this class to be
   //       to be called.
   base::CancelableCallback<void()> timeout_;
 
   DISALLOW_COPY_AND_ASSIGN(ConnectivityCheckerImpl);
 };
 
 }  // namespace chromecast
 
 #endif  // CHROMECAST_NET_CONNECTIVITY_CHECKER_IMPL_H_