Add UMA stats for Chromoting connection details.

remoting/client/plugin/chromoting_instance.h

 // Copyright (c) 2012 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 REMOTING_CLIENT_PLUGIN_CHROMOTING_INSTANCE_H_
 #define REMOTING_CLIENT_PLUGIN_CHROMOTING_INSTANCE_H_
 
 #include <string>
 
 #include "base/gtest_prod_util.h"
@@ skipping 270 matching lines @@
 
   // PIN Fetcher.
   bool use_async_pin_dialog_;
   protocol::SecretFetchedCallback secret_fetched_callback_;
 
   base::WeakPtr<TokenFetcherProxy> token_fetcher_proxy_;
 
   // Weak reference to this instance, used for global logging and task posting.
   base::WeakPtrFactory<ChromotingInstance> weak_factory_;
 
+  // Time when a connection request was started.
+  base::Time connection_connecting_;

[Sergey Ulanov, 2015/08/20 21:05:19]

use base::TimeTicks, instead of base::Time. 

[Sergey Ulanov, 2015/08/20 21:05:19]

nit: rename these to indicate the purpose more clearly. E.g.
connection_started_time_, authenticated_time_, connected_time_.

[anandc, 2015/08/20 23:12:01]

Done.

[anandc, 2015/08/20 23:12:01]

Done.

+  // Time when a connection request was authenticated.
+  base::Time connection_authenticated_;
+  // Time when a connection request was connected.
+  base::Time connection_connected_;
+
   DISALLOW_COPY_AND_ASSIGN(ChromotingInstance);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CLIENT_PLUGIN_CHROMOTING_INSTANCE_H_