Added SchemaMap::GetChanges().

chrome/browser/policy/schema_map.h

Index: chrome/browser/policy/schema_map.h
diff --git a/chrome/browser/policy/schema_map.h b/chrome/browser/policy/schema_map.h
index cbb9f500700daacce4781fa93878d712526ccd3e..b3a1db1937a017cf2eac4959052688f2ca0db087 100644
--- a/chrome/browser/policy/schema_map.h
+++ b/chrome/browser/policy/schema_map.h
@@ -42,9 +42,16 @@ class SchemaMap : public base::RefCountedThreadSafe<SchemaMap> {
   // than POLICY_DOMAIN_CHROME.
   bool HasComponents() const;
 
+  void GetChanges(const scoped_refptr<SchemaMap>& older,
+                  PolicyNamespaceList* removed,
+                  PolicyNamespaceList* added) const;
+
  private:
   friend class base::RefCountedThreadSafe<SchemaMap>;
 
+  void GetNamespacesNotInOther(const SchemaMap* other,
+                               PolicyNamespaceList* list) const;
+
   ~SchemaMap();
 
   DomainMap map_;