Unify symbols sharing across native scripts and runtime.

src/runtime/runtime-symbol.cc

Index: src/runtime/runtime-symbol.cc
diff --git a/src/runtime/runtime-symbol.cc b/src/runtime/runtime-symbol.cc
index 8f99a37c42cb658336063b5ff9cbb498f9cd6181..03bd76ce27f9eff9dc75872acd7c22e9aedee793 100644
--- a/src/runtime/runtime-symbol.cc
+++ b/src/runtime/runtime-symbol.cc
@@ -30,27 +30,6 @@ RUNTIME_FUNCTION(Runtime_CreatePrivateSymbol) {
 }
 
 
-RUNTIME_FUNCTION(Runtime_CreateGlobalPrivateSymbol) {
-  HandleScope scope(isolate);
-  DCHECK(args.length() == 1);
-  CONVERT_ARG_HANDLE_CHECKED(String, name, 0);
-  Handle<JSObject> registry = isolate->GetSymbolRegistry();
-  Handle<String> part = isolate->factory()->private_intern_string();
-  Handle<Object> privates;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, privates,
-                                     Object::GetProperty(registry, part));
-  Handle<Object> symbol;
-  ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, symbol,
-                                     Object::GetProperty(privates, name));
-  if (!symbol->IsSymbol()) {
-    DCHECK(symbol->IsUndefined());
-    symbol = isolate->factory()->NewPrivateSymbol(name);
-    JSObject::AddProperty(Handle<JSObject>::cast(privates), name, symbol, NONE);
-  }
-  return *symbol;
-}
-
-
 RUNTIME_FUNCTION(Runtime_SymbolDescription) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);