Switch from SignedSettings to DeviceSettingsService.

chrome/browser/chromeos/settings/cros_settings.h

Index: chrome/browser/chromeos/settings/cros_settings.h
diff --git a/chrome/browser/chromeos/settings/cros_settings.h b/chrome/browser/chromeos/settings/cros_settings.h
index 128184c708c38951baa437d69204e111f8d36c15..4148ee69e848f90af14a60e2851a5ac7cfdb68a0 100644
--- a/chrome/browser/chromeos/settings/cros_settings.h
+++ b/chrome/browser/chromeos/settings/cros_settings.h
@@ -91,12 +91,16 @@ class CrosSettings : public base::NonThreadSafe {
   // Returns the provider that handles settings with the |path| or prefix.
   CrosSettingsProvider* GetProvider(const std::string& path) const;
 
-  // Forces all providers to reload their caches from the respective backing
-  // stores if they have any.
-  void ReloadProviders();
-
  private:
   friend struct base::DefaultLazyInstanceTraits<CrosSettings>;
+  friend class CrosSettingsTest;
+
+  // Public for testing.
+  CrosSettings();
+  ~CrosSettings();
+
+  // Fires system setting change notification.
+  void FireObservers(const std::string& path);
 
   // List of ChromeOS system settings providers.
   std::vector<CrosSettingsProvider*> providers_;
@@ -109,12 +113,6 @@ class CrosSettings : public base::NonThreadSafe {
       SettingsObserverMap;
   SettingsObserverMap settings_observers_;
 
-  CrosSettings();
-  ~CrosSettings();
-
-  // Fires system setting change notification.
-  void FireObservers(const std::string& path);
-
   DISALLOW_COPY_AND_ASSIGN(CrosSettings);
 };