PART1: Initiated the SignedSettings refactoring.

chrome/browser/ui/webui/options/chromeos/internet_options_handler.cc

Index: chrome/browser/ui/webui/options/chromeos/internet_options_handler.cc
diff --git a/chrome/browser/ui/webui/options/chromeos/internet_options_handler.cc b/chrome/browser/ui/webui/options/chromeos/internet_options_handler.cc
index 015840710999d6f7564002255b868ef2423ea087..87679b183b19e85f6b1697c02e5de029350946fc 100644
--- a/chrome/browser/ui/webui/options/chromeos/internet_options_handler.cc
+++ b/chrome/browser/ui/webui/options/chromeos/internet_options_handler.cc
@@ -55,8 +55,7 @@
 static const char kOtherNetworksFakePath[] = "?";
 
 InternetOptionsHandler::InternetOptionsHandler()
-    : chromeos::CrosOptionsPageUIHandler(NULL),
-      proxy_settings_(NULL) {
+    : proxy_settings_(NULL) {
   registrar_.Add(this, chrome::NOTIFICATION_REQUIRE_PIN_SETTING_CHANGE_ENDED,
       NotificationService::AllSources());
   registrar_.Add(this, chrome::NOTIFICATION_ENTER_PIN_ENDED,
@@ -359,8 +358,9 @@ void InternetOptionsHandler::GetLocalizedValues(
       l10n_util::GetStringUTF16(IDS_CLOSE));
   localized_strings->SetString("ownerOnly", l10n_util::GetStringUTF16(
       IDS_OPTIONS_ACCOUNTS_OWNER_ONLY));
-  localized_strings->SetString("ownerUserId", UTF8ToUTF16(
-      chromeos::UserCrosSettingsProvider::cached_owner()));
+  std::string owner;
+  chromeos::CrosSettings::Get()->GetString(chromeos::kDeviceOwner, &owner);
+  localized_strings->SetString("ownerUserId", UTF8ToUTF16(owner));
 
   FillNetworkInfo(localized_strings);
 }
@@ -563,7 +563,7 @@ void InternetOptionsHandler::OnCellularDataPlanChanged(
 void InternetOptionsHandler::Observe(int type,
                                      const NotificationSource& source,
                                      const NotificationDetails& details) {
-  chromeos::CrosOptionsPageUIHandler::Observe(type, source, details);
+  OptionsPageUIHandler::Observe(type, source, details);
   if (type == chrome::NOTIFICATION_REQUIRE_PIN_SETTING_CHANGE_ENDED) {
     bool require_pin = *Details<bool>(details).ptr();
     DictionaryValue dictionary;