components: add wifi_sync component

chrome/browser/sync/test/integration/wifi_credentials_helper_chromeos.cc

+// 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.
+
+#include "chrome/browser/sync/test/integration/wifi_credentials_helper_chromeos.h"
+
+#include <string>
+
+#include "base/files/file_path.h"
+#include "base/logging.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chromeos/network/network_handler.h"
+#include "chromeos/network/network_state.h"
+#include "chromeos/network/network_state_handler.h"
+#include "components/wifi_sync/network_state_helper_chromeos.h"
+#include "components/wifi_sync/wifi_security_class.h"
+
+using WifiCredentialSet = wifi_sync::WifiCredential::CredentialSet;
+
+namespace wifi_credentials_helper {
+
+namespace {
+
+const char kProfilePrefix[] = "/profile/";
+
+std::string ChromeOsUserHashForBrowserContext(
+    const content::BrowserContext& context) {
+  return context.GetPath().BaseName().value();
+}
+
+std::string ShillProfilePathForBrowserContext(
+    const content::BrowserContext& context) {
+  return kProfilePrefix + ChromeOsUserHashForBrowserContext(context);
+}
+
+chromeos::NetworkStateHandler* GetNetworkStateHandler() {
+  DCHECK(chromeos::NetworkHandler::Get());
+  DCHECK(chromeos::NetworkHandler::Get()->network_state_handler());

[stevenjb, 2014/12/05 20:28:17]

Get() asserts if not initialized. You can use NetworkHandler::IsInitialized() to
test whether or not it was initialized if that is a valid use case, but here you
don't need either check.

[mukesh agrawal, 2014/12/05 23:48:10]

Done.

I've taken "don't need either check" to mean the DCHECK on Get(), and the
IsInitialized() call. Let me know if I've misunderstood.(I.e. let me know if I
should remove the DCHECK of the network_state_handler() result.)

+  return chromeos::NetworkHandler::Get()->network_state_handler();
+}
+
+}  // namespace
+
+WifiCredentialSet GetWifiCredentialsForProfileChromeOs(const Profile* profile) {
+  DCHECK(profile);
+  return wifi_sync::GetWifiCredentialsForShillProfile(
+      GetNetworkStateHandler(), ShillProfilePathForBrowserContext(*profile));
+}
+
+}  // namespace wifi_credentials_helper