Pepper WebSocket API: Fix memory leak issue

ppapi/cpp/private/var_private.cc

Index: ppapi/cpp/private/var_private.cc
diff --git a/ppapi/cpp/private/var_private.cc b/ppapi/cpp/private/var_private.cc
index 27e418aef0861f4706d36a5eab194423f74a4687..ff61226d582bf22a23f168ce5c8450ce2bb15227 100644
--- a/ppapi/cpp/private/var_private.cc
+++ b/ppapi/cpp/private/var_private.cc
@@ -29,12 +29,11 @@ VarPrivate::VarPrivate(const InstanceHandle& instance,
   if (has_interface<PPB_Var_Deprecated>()) {
     var_ = get_interface<PPB_Var_Deprecated>()->CreateObject(
         instance.pp_instance(), object->GetClass(), object);
-    needs_release_ = true;
   } else {
     var_.type = PP_VARTYPE_NULL;
     var_.padding = 0;
-    needs_release_ = false;
   }
+  is_managed_ = true;
 }
 
 ScriptableObject* VarPrivate::AsScriptableObject() const {