components: add wifi_sync component

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;
+}
+
+// Functions which deal with ChromeOS-specific network state.

[erikwright (departed), 2014/12/08 21:21:36]

This comment is confusing (1 since it is on a namespace and 2 since there is
only one function).

Since the file is named .._helper_chromeos.h I think it's superfluous and would
remove it.

[mukesh agrawal, 2014/12/09 01:45:27]

Done.

+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_