components: add wifi_sync component

chrome/browser/sync/test/integration/single_client_wifi_credentials_sync_test.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 "base/command_line.h"
+#include "base/macros.h"
+#include "chrome/browser/sync/test/integration/sync_test.h"
+#include "chrome/browser/sync/test/integration/wifi_credentials_helper.h"
+#include "chrome/common/chrome_switches.h"
+
+class SingleClientWifiCredentialsSyncTest : public SyncTest {
+ public:
+  SingleClientWifiCredentialsSyncTest() : SyncTest(SINGLE_CLIENT) {}
+  ~SingleClientWifiCredentialsSyncTest() override {}
+
+  void SetUpCommandLine(CommandLine* command_line) override {
+    SyncTest::SetUpCommandLine(command_line);
+    command_line->AppendSwitch(switches::kEnableWifiCredentialSync);
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(SingleClientWifiCredentialsSyncTest);
+};
+
+IN_PROC_BROWSER_TEST_F(SingleClientWifiCredentialsSyncTest, NoCredentials) {
+  ASSERT_TRUE(SetupSync()) << "SetupSync() failed.";
+  ASSERT_TRUE(wifi_credentials_helper::VerifierIsEmpty());
+  ASSERT_TRUE(wifi_credentials_helper::ProfileMatchesVerifier(0));
+}