Add DeviceSettingProvider unit tests.

chrome/browser/chromeos/cros_settings.cc

 // Copyright (c) 2012 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/chromeos/cros_settings.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/stl_util.h"
 #include "base/string_util.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/cros_settings_provider.h"
 #include "chrome/browser/chromeos/device_settings_provider.h"
+#include "chrome/browser/chromeos/login/signed_settings_helper.h"
 #include "chrome/browser/chromeos/stub_cros_settings_provider.h"
 #include "chrome/browser/ui/webui/options2/chromeos/system_settings_provider2.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_switches.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 
 namespace chromeos {
 
@@ skipping 249 matching lines @@
 
 CrosSettings::CrosSettings() {
   CrosSettingsProvider::NotifyObserversCallback notify_cb(
       base::Bind(&CrosSettings::FireObservers,
                  // This is safe since |this| is never deleted.
                  base::Unretained(this)));
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kStubCrosSettings)) {
     AddSettingsProvider(new StubCrosSettingsProvider(notify_cb));
   } else {
-    AddSettingsProvider(new DeviceSettingsProvider(notify_cb));
+    AddSettingsProvider(
+        new DeviceSettingsProvider(notify_cb, SignedSettingsHelper::Get()));
   }
   // System settings are not mocked currently.
   AddSettingsProvider(new options2::SystemSettingsProvider(notify_cb));
 }
 
 CrosSettings::~CrosSettings() {
   STLDeleteElements(&providers_);
   STLDeleteValues(&settings_observers_);
 }
 
 }  // namespace chromeos