All private symbols are own symbols

src/factory.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/factory.h"
 
 #include "src/allocation-site-scopes.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/conversions.h"
@@ skipping 658 matching lines @@
 
 
 Handle<Symbol> Factory::NewSymbol() {
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateSymbol(),
       Symbol);
 }
 
 
-Handle<Symbol> Factory::NewPrivateSymbol() {
+Handle<Symbol> Factory::NewPrivateSymbol(Handle<Object> name) {
   Handle<Symbol> symbol = NewSymbol();
   symbol->set_is_private(true);
-  return symbol;
-}
-
-
-Handle<Symbol> Factory::NewPrivateOwnSymbol(Handle<Object> name) {
-  Handle<Symbol> symbol = NewSymbol();
-  symbol->set_is_private(true);
-  symbol->set_is_own(true);
   if (name->IsString()) {
     symbol->set_name(*name);
   } else {
     DCHECK(name->IsUndefined());
   }
   return symbol;
 }
 
 
 Handle<Context> Factory::NewNativeContext() {
@@ skipping 1737 matching lines @@
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 }  // namespace internal
 }  // namespace v8