Make customElements.define faster

third_party/WebKit/Source/bindings/core/v8/ScriptCustomElementDefinitionBuilder.h

 // Copyright 2016 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 ScriptCustomElementDefinitionBuilder_h
 #define ScriptCustomElementDefinitionBuilder_h
 
 #include "core/CoreExport.h"
 #include "core/dom/custom/CustomElementDefinitionBuilder.h"
 #include "platform/heap/Handle.h"
@@ skipping 17 matching lines @@
     : public CustomElementDefinitionBuilder {
   STACK_ALLOCATED();
   WTF_MAKE_NONCOPYABLE(ScriptCustomElementDefinitionBuilder);
 
  public:
   ScriptCustomElementDefinitionBuilder(
       ScriptState*,
       CustomElementRegistry*,
       const ScriptValue& constructor_script_value,
       ExceptionState&);
-  ~ScriptCustomElementDefinitionBuilder();
+  ~ScriptCustomElementDefinitionBuilder() {}
 
   bool CheckConstructorIntrinsics() override;
   bool CheckConstructorNotRegistered() override;
   bool CheckPrototype() override;
   bool RememberOriginalProperties() override;
-  CustomElementDefinition* Build(const CustomElementDescriptor&) override;
+  CustomElementDefinition* Build(const CustomElementDescriptor&,
+                                 CustomElementDefinition::Id) override;
 
  private:
   static ScriptCustomElementDefinitionBuilder* stack_;
 
-  ScriptCustomElementDefinitionBuilder* prev_;
   RefPtr<ScriptState> script_state_;
   Member<CustomElementRegistry> registry_;
   v8::Local<v8::Value> constructor_value_;
   v8::Local<v8::Object> constructor_;
   v8::Local<v8::Object> prototype_;
   v8::Local<v8::Function> connected_callback_;
   v8::Local<v8::Function> disconnected_callback_;
   v8::Local<v8::Function> adopted_callback_;
   v8::Local<v8::Function> attribute_changed_callback_;
   HashSet<AtomicString> observed_attributes_;
   ExceptionState& exception_state_;
 
-  bool ValueForName(const v8::Local<v8::Object>&,
+  bool ValueForName(v8::Isolate*,
+                    v8::Local<v8::Context>&,
+                    const v8::TryCatch&,
+                    const v8::Local<v8::Object>&,
                     const StringView&,
                     v8::Local<v8::Value>&) const;
-  bool CallableForName(const StringView&, v8::Local<v8::Function>&) const;
-  bool RetrieveObservedAttributes();
+  bool CallableForName(v8::Isolate*,
+                       v8::Local<v8::Context>&,
+                       const v8::TryCatch&,
+                       const StringView&,
+                       v8::Local<v8::Function>&) const;
+  bool RetrieveObservedAttributes(v8::Isolate*,
+                                  v8::Local<v8::Context>&,
+                                  const v8::TryCatch&);
 };
 
 }  // namespace blink
 
 #endif  // ScriptCustomElementDefinitionBuilder_h