Convert PrefSyncStatus into PrefRegistrationFlags

base/prefs/pref_service.h

Index: base/prefs/pref_service.h
diff --git a/base/prefs/pref_service.h b/base/prefs/pref_service.h
index d9b03c9388ec9c7540ade8c1a5ede1867c1eb8f1..29de4d2b5b4ca82dca93eff3eef7fc85945bf740 100644
--- a/base/prefs/pref_service.h
+++ b/base/prefs/pref_service.h
@@ -229,6 +229,10 @@ class BASE_PREFS_EXPORT PrefService : public base::NonThreadSafe {
   // registered preference. In that case, will never return NULL.
   const base::Value* GetDefaultPrefValue(const std::string& path) const;
 
+  // Return the registration flags for the given pref. Returns a bitmask of
+  // |PrefRegistrationFlags|.
+  uint32 GetRegistrationFlags(const std::string& path) const;
+
   // Returns true if a value has been set for the specified path.
   // NOTE: this is NOT the same as FindPreference. In particular
   // FindPreference returns whether RegisterXXX has been invoked, where as