Share Maps for ElementsKind transitions

src/factory.cc

Index: src/factory.cc
diff --git a/src/factory.cc b/src/factory.cc
index 97289266e37b82fdf7603d4408ee919af6cf0e00..7f34004f4f7a62f22e08180a9ec1297dd4e6a162 100644
--- a/src/factory.cc
+++ b/src/factory.cc
@@ -455,23 +455,11 @@ Handle<Map> Factory::CopyMapDropTransitions(Handle<Map> src) {
 }
 
 
-Handle<Map> Factory::GetFastElementsMap(Handle<Map> src) {
-  CALL_HEAP_FUNCTION(isolate(), src->GetFastElementsMap(), Map);
-}
-
-
-Handle<Map> Factory::GetSlowElementsMap(Handle<Map> src) {
-  CALL_HEAP_FUNCTION(isolate(), src->GetSlowElementsMap(), Map);
-}
-
-
 Handle<Map> Factory::GetElementsTransitionMap(
-    Handle<Map> src,
-    ElementsKind elements_kind,
-    bool safe_to_add_transition) {
+    Handle<JSObject> src,
+    ElementsKind elements_kind) {
   CALL_HEAP_FUNCTION(isolate(),
-                     src->GetElementsTransitionMap(elements_kind,
-                                                   safe_to_add_transition),
+                     src->GetElementsTransitionMap(elements_kind),
                      Map);
 }