components: Move PrefRegistrySyncable into user_prefs namespace.

chrome/browser/extensions/component_loader.cc

Index: chrome/browser/extensions/component_loader.cc
diff --git a/chrome/browser/extensions/component_loader.cc b/chrome/browser/extensions/component_loader.cc
index b839f95902966f0f36771e4b0c50fa5d8e0d097f..a1c206aa7ecb1eae84c3bd532d3ca555095acdd9 100644
--- a/chrome/browser/extensions/component_loader.cc
+++ b/chrome/browser/extensions/component_loader.cc
@@ -486,13 +486,16 @@ void ComponentLoader::UnloadComponent(ComponentExtensionInfo* component) {
 }
 
 // static
-void ComponentLoader::RegisterUserPrefs(PrefRegistrySyncable* registry) {
-  registry->RegisterStringPref(prefs::kEnterpriseWebStoreURL,
-                               std::string() /* default_value */,
-                               PrefRegistrySyncable::UNSYNCABLE_PREF);
-  registry->RegisterStringPref(prefs::kEnterpriseWebStoreName,
-                               std::string() /* default_value */,
-                               PrefRegistrySyncable::UNSYNCABLE_PREF);
+void ComponentLoader::RegisterUserPrefs(
+    user_prefs::PrefRegistrySyncable* registry) {
+  registry->RegisterStringPref(
+      prefs::kEnterpriseWebStoreURL,
+      std::string() /* default_value */,
+      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterStringPref(
+      prefs::kEnterpriseWebStoreName,
+      std::string() /* default_value */,
+      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 }
 
 }  // namespace extensions