Make Script non-TraceWrapperBase and add a comment about ModuleScript tracing

third_party/WebKit/Source/core/dom/ClassicScript.cpp

 // Copyright 2017 The Chromium 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 "core/dom/ClassicScript.h"
 
 #include "bindings/core/v8/ScriptController.h"
 #include "core/dom/Document.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/UseCounter.h"
@@ skipping 33 matching lines @@
   UseCounter::Count(frame, feature);
 }
 
 }  // namespace
 
 DEFINE_TRACE(ClassicScript) {
   Script::Trace(visitor);
   visitor->Trace(script_source_code_);
 }
 
-DEFINE_TRACE_WRAPPERS(ClassicScript) {
-  Script::TraceWrappers(visitor);
-}
-
 bool ClassicScript::IsEmpty() const {
   return GetScriptSourceCode().IsEmpty();
 }
 
 bool ClassicScript::CheckMIMETypeBeforeRunScript(
     Document* context_document,
     const SecurityOrigin* security_origin) const {
   ScriptResource* resource = GetScriptSourceCode().GetResource();
   CHECK(resource);
 
@@ skipping 45 matching lines @@
     access_control_status =
         GetScriptSourceCode().GetResource()->CalculateAccessControlStatus(
             security_origin);
   }
 
   frame->GetScriptController().ExecuteScriptInMainWorld(GetScriptSourceCode(),
                                                         access_control_status);
 }
 
 }  // namespace blink