Use NetworkConnectionObserver to trigger connect failure notifications

chromeos/network/auto_connect_handler.h

Index: chromeos/network/auto_connect_handler.h
diff --git a/chromeos/network/auto_connect_handler.h b/chromeos/network/auto_connect_handler.h
index 99771075fd71bdb7b5448ca16da3c6259664635e..7a1bcc5de8805b6a367af5cc48ab7e9049bd6b65 100644
--- a/chromeos/network/auto_connect_handler.h
+++ b/chromeos/network/auto_connect_handler.h
@@ -12,7 +12,7 @@
 #include "chromeos/chromeos_export.h"
 #include "chromeos/login/login_state.h"
 #include "chromeos/network/client_cert_resolver.h"
-#include "chromeos/network/network_connection_handler.h"
+#include "chromeos/network/network_connection_observer.h"
 #include "chromeos/network/network_handler.h"
 #include "chromeos/network/network_policy_observer.h"
 #include "chromeos/network/network_state_handler_observer.h"
@@ -22,7 +22,7 @@ namespace chromeos {
 class CHROMEOS_EXPORT AutoConnectHandler
     : public LoginState::Observer,
       public NetworkPolicyObserver,
-      public NetworkConnectionHandler::Observer,
+      public NetworkConnectionObserver,
       public NetworkStateHandlerObserver,
       public ClientCertResolver::Observer {
  public:
@@ -31,7 +31,7 @@ class CHROMEOS_EXPORT AutoConnectHandler
   // LoginState::Observer
   void LoggedInStateChanged() override;
 
-  // NetworkConnectionHandler::Observer
+  // NetworkConnectionObserver
   void ConnectToNetworkRequested(const std::string& service_path) override;
 
   // NetworkPolicyObserver