Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/google/google_url_tracker_factory.cc

Index: chrome/browser/google/google_url_tracker_factory.cc
diff --git a/chrome/browser/google/google_url_tracker_factory.cc b/chrome/browser/google/google_url_tracker_factory.cc
index 1908961c3bdf90022b4cdc2c25dec7fe9555bb87..732cdc15627404ea31bebd8ad3565b159b2b39e1 100644
--- a/chrome/browser/google/google_url_tracker_factory.cc
+++ b/chrome/browser/google/google_url_tracker_factory.cc
@@ -34,11 +34,14 @@ ProfileKeyedService* GoogleURLTrackerFactory::BuildServiceInstanceFor(
   return new GoogleURLTracker(profile, GoogleURLTracker::NORMAL_MODE);
 }
 
-void GoogleURLTrackerFactory::RegisterUserPrefs(PrefService* user_prefs) {
+void GoogleURLTrackerFactory::RegisterUserPrefs(
+    PrefServiceSyncable* user_prefs) {
   user_prefs->RegisterStringPref(prefs::kLastKnownGoogleURL,
-      GoogleURLTracker::kDefaultGoogleHomepage, PrefService::UNSYNCABLE_PREF);
-  user_prefs->RegisterStringPref(prefs::kLastPromptedGoogleURL, std::string(),
-                                 PrefService::UNSYNCABLE_PREF);
+                                 GoogleURLTracker::kDefaultGoogleHomepage,
+                                 PrefServiceSyncable::UNSYNCABLE_PREF);
+  user_prefs->RegisterStringPref(prefs::kLastPromptedGoogleURL,
+                                 std::string(),
+                                 PrefServiceSyncable::UNSYNCABLE_PREF);
 }
 
 bool GoogleURLTrackerFactory::ServiceRedirectedInIncognito() const {