[Sync] Rename wifi_sync to sync_wifi.

components/wifi_sync/network_state_helper_chromeos.h

-// Copyright 2014 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 COMPONENTS_WIFI_SYNC_NETWORK_STATE_HELPER_CHROMEOS_H_
-#define COMPONENTS_WIFI_SYNC_NETWORK_STATE_HELPER_CHROMEOS_H_
-
-#include <string>
-
-#include "components/wifi_sync/wifi_credential.h"
-
-namespace chromeos {
-class NetworkStateHandler;
-}
-
-namespace wifi_sync {
-
-// Returns a platform-agnostic representation of the ChromeOS network
-// configuration state. The configuration state is filtered, so that
-// only items related to ChromeOS |shill_profile_path| are returned.
-WifiCredential::CredentialSet GetWifiCredentialsForShillProfile(
-    chromeos::NetworkStateHandler* network_state_handler,
-    const std::string& shill_profile_path);
-
-}  // namespace wifi_sync
-
-#endif  // COMPONENTS_WIFI_SYNC_NETWORK_STATE_HELPER_CHROMEOS_H_