Added ConnectionTimeObserver to calculate the times to authenticate and connect.

remoting/protocol/connection_to_host_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 REMOTING_PROTOCOL_CONNECTION_TO_HOST_IMPL_H_
 #define REMOTING_PROTOCOL_CONNECTION_TO_HOST_IMPL_H_
 
 #include <set>
 #include <string>
 
@@ skipping 19 matching lines @@
 class XmppProxy;
 class VideoPacket;
 
 namespace protocol {
 
 class AudioReader;
 class ClientControlDispatcher;
 class ClientEventDispatcher;
 class ClientVideoDispatcher;
 
+const char* ConnectionStateToFriendlyString(

[Sergey Ulanov, 2015/07/29 00:56:23]

Make this static method in ConnectionToHost?

[tonychun, 2015/07/29 16:10:13]

Done.

+      remoting::protocol::ConnectionToHost::State state);
+
+const char* ProtocolErrorToFriendlyString(
+    remoting::protocol::ErrorCode error_code);

[joedow, 2015/07/28 23:09:05]

I'm wondering if this should be in connection_to_host.h (I don't think the impl
headers should be included by anything other than the impl.cc file.  Can you
check with sergey and confirm?

[Sergey Ulanov, 2015/07/29 00:56:23]

Yeah, I don't think it belongs in this file. Move to
remoting/protocol/error.[h|cc]?

[tonychun, 2015/07/29 16:10:13]

I've added an Error class which also has a static method.

+
 class ConnectionToHostImpl : public ConnectionToHost,
                              public SignalStrategy::Listener,
                              public SessionManager::Listener,
                              public Session::EventHandler,
                              public ChannelDispatcherBase::EventHandler,
                              public base::NonThreadSafe {
  public:
   ConnectionToHostImpl();
   ~ConnectionToHostImpl() override;
 
@@ skipping 77 matching lines @@
   ErrorCode error_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ConnectionToHostImpl);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_CONNECTION_TO_HOST_IMPL_H_