[ES6 modules] ScriptModule::instantiate with resolveModule cb and error handling

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

Index: third_party/WebKit/Source/core/dom/ScriptModuleResolver.h
diff --git a/third_party/WebKit/Source/core/dom/ScriptModuleResolver.h b/third_party/WebKit/Source/core/dom/ScriptModuleResolver.h
index 72816c9b443375ae502db6e83278515fee2024f5..9bf7dc5f0d2c6b1e0b221c677e043c2b1831b4da 100644
--- a/third_party/WebKit/Source/core/dom/ScriptModuleResolver.h
+++ b/third_party/WebKit/Source/core/dom/ScriptModuleResolver.h
@@ -21,8 +21,10 @@ class ModuleScript;
 // the specifier, and the module identified by 'x' is the descendant.
 // ScriptModuleResolver, given a referrer and specifier, can look up the
 // descendant.
-class ScriptModuleResolver : public GarbageCollected<ScriptModuleResolver> {
+class ScriptModuleResolver
+    : public GarbageCollectedFinalized<ScriptModuleResolver> {
  public:
+  virtual ~ScriptModuleResolver() {}
   DEFINE_INLINE_VIRTUAL_TRACE() {}
 
   // Notify the ScriptModuleResolver that a ModuleScript exists.