[CrOS Tether] Remove spammy log from Initializer.

chromeos/components/tether/initializer.h

 // Copyright 2016 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 CHROMEOS_COMPONENTS_TETHER_INITIALIZER_H_
 #define CHROMEOS_COMPONENTS_TETHER_INITIALIZER_H_
 
 #include <memory>
 
 #include "base/gtest_prod_util.h"
@@ skipping 38 matching lines @@
 class TetherConnector;
 class TetherDisconnector;
 class TetherHostFetcher;
 class TetherHostResponseRecorder;
 class TetherNetworkDisconnectionHandler;
 class WifiHotspotConnector;
 
 // Initializes the Tether Chrome OS component.
 class Initializer : public OAuth2TokenService::Observer {
  public:
-  // Initializes the tether feature.
+  // Initializes the tether feature. If the feature has already been
+  // initialized, this function is a no-op.
   static void Init(
       cryptauth::CryptAuthService* cryptauth_service,
       std::unique_ptr<NotificationPresenter> notification_presenter,
       PrefService* pref_service,
       ProfileOAuth2TokenService* token_service,
       NetworkStateHandler* network_state_handler,
       ManagedNetworkConfigurationHandler* managed_network_configuration_handler,
       NetworkConnect* network_connect,
       NetworkConnectionHandler* network_connection_handler);
 
@@ skipping 72 matching lines @@
   base::WeakPtrFactory<Initializer> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Initializer);
 };
 
 }  // namespace tether
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_COMPONENTS_TETHER_INITIALIZER_H_