[ES6 modules] Make ModuleMap TraceWrapperBase

third_party/WebKit/Source/core/dom/ModuleMap.h

 // 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.
 
 #ifndef ModuleMap_h
 #define ModuleMap_h
 
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "bindings/core/v8/TraceWrapperMember.h"
 #include "core/CoreExport.h"
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/KURLHash.h"
 #include "wtf/HashMap.h"
 
 namespace blink {
 
 class Modulator;
 class ModuleScript;
 class ModuleScriptFetchRequest;
 class SingleModuleClient;
 enum class ModuleGraphLevel;
 
 // A ModuleMap implements "module map" spec.
 // https://html.spec.whatwg.org/#module-map
-class CORE_EXPORT ModuleMap final : public GarbageCollected<ModuleMap> {
+class CORE_EXPORT ModuleMap final : public GarbageCollected<ModuleMap>,
+                                    public TraceWrapperBase {
   WTF_MAKE_NONCOPYABLE(ModuleMap);
   class Entry;
-  class LoaderHost;
 
  public:
   static ModuleMap* create(Modulator* modulator) {
     return new ModuleMap(modulator);
   }
   DECLARE_TRACE();
+  DECLARE_VIRTUAL_TRACE_WRAPPERS();

[yhirano, 2017/04/05 05:56:46]

No _VIRTUAL_ is needed?

[kouhei (in TOK), 2017/04/05 07:51:43]

Done.

 
   // https://html.spec.whatwg.org/multipage/webappapis.html#fetch-a-single-module-script
   void fetchSingleModuleScript(const ModuleScriptFetchRequest&,
                                ModuleGraphLevel,
                                SingleModuleClient*);
 
   // Synchronously get the ModuleScript for a given URL.
   // Note: fetchSingleModuleScript of the ModuleScript must be complete before
   // calling this.
   ModuleScript* getFetchedModuleScript(const KURL&) const;
 
   Modulator* modulator() { return m_modulator; }
 
  private:
   explicit ModuleMap(Modulator*);
 
-  using MapImpl = HeapHashMap<KURL, Member<Entry>>;
+  using MapImpl = HeapHashMap<KURL, TraceWrapperMember<Entry>>;
 
   // A module map is a map of absolute URLs to map entry.
   MapImpl m_map;
 
   Member<Modulator> m_modulator;
 };
 
 }  // namespace blink
 
 #endif