Added ConnectionTimeObserver to calculate the times to authenticate and connect.

remoting/protocol/connection_to_host_impl.cc

 // 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.
 
 #include "remoting/protocol/connection_to_host_impl.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/location.h"
 #include "remoting/base/constants.h"
@@ skipping 30 matching lines @@
   if (session_.get())
     session_.reset();
 
   if (session_manager_.get())
     session_manager_.reset();
 
   if (signal_strategy_)
     signal_strategy_->RemoveListener(this);
 }
 
+#define RETURN_STRING_LITERAL(x) \
+case x: \
+return #x;
+
+const char* ConnectionToHost::StateToString(State state) {
+  switch (state) {
+    RETURN_STRING_LITERAL(INITIALIZING);
+    RETURN_STRING_LITERAL(CONNECTING);
+    RETURN_STRING_LITERAL(AUTHENTICATED);
+    RETURN_STRING_LITERAL(CONNECTED);
+    RETURN_STRING_LITERAL(CLOSED);
+    RETURN_STRING_LITERAL(FAILED);
+  }
+  NOTREACHED();
+  return nullptr;
+}
+
 void ConnectionToHostImpl::Connect(
     SignalStrategy* signal_strategy,
     scoped_ptr<TransportFactory> transport_factory,
     scoped_ptr<Authenticator> authenticator,
     const std::string& host_jid,
     HostEventCallback* event_callback) {
   DCHECK(client_stub_);
   DCHECK(clipboard_stub_);
   DCHECK(monitored_video_stub_);
 
@@ skipping 233 matching lines @@
 
   if (state != state_) {
     state_ = state;
     error_ = error;
     event_callback_->OnConnectionState(state_, error_);
   }
 }
 
 }  // namespace protocol
 }  // namespace remoting