Add UMA stats for Chromoting connection details.

remoting/client/plugin/chromoting_instance.h

Index: remoting/client/plugin/chromoting_instance.h
diff --git a/remoting/client/plugin/chromoting_instance.h b/remoting/client/plugin/chromoting_instance.h
index 09c2252ecb85c30a3132aac42755735f5e5977e2..8762eee8ebc6470c054dcdd0b0f8a096092df9f1 100644
--- a/remoting/client/plugin/chromoting_instance.h
+++ b/remoting/client/plugin/chromoting_instance.h
@@ -288,6 +288,13 @@ class ChromotingInstance : public ClientUserInterface,
   // 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);
 };