Add callbacks to ScriptCustomElementDefinition

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

Index: third_party/WebKit/Source/bindings/core/v8/ScriptCustomElementDefinitionBuilder.h
diff --git a/third_party/WebKit/Source/bindings/core/v8/ScriptCustomElementDefinitionBuilder.h b/third_party/WebKit/Source/bindings/core/v8/ScriptCustomElementDefinitionBuilder.h
index b6d98ab1cee403410831c3e29a54a7eb8af56ff2..9167ff8db38bcd78fcb02275c22b47df00a693b5 100644
--- a/third_party/WebKit/Source/bindings/core/v8/ScriptCustomElementDefinitionBuilder.h
+++ b/third_party/WebKit/Source/bindings/core/v8/ScriptCustomElementDefinitionBuilder.h
@@ -34,6 +34,7 @@ public:
     bool checkConstructorIntrinsics() override;
     bool checkConstructorNotRegistered() override;
     bool checkPrototype() override;
+    bool cacheProperties() override;
     CustomElementDefinition* build(const CustomElementDescriptor&) override;
 
 private:
@@ -42,7 +43,15 @@ private:
     v8::Local<v8::Value> m_constructorValue;
     v8::Local<v8::Object> m_constructor;
     v8::Local<v8::Object> m_prototype;
+    v8::Local<v8::Object> m_connectedCallback;
+    v8::Local<v8::Object> m_disconnectedCallback;
+    v8::Local<v8::Object> m_attributeChangedCallback;
+    Vector<AtomicString> m_observedAttributes;
     ExceptionState& m_exceptionState;
+
+    bool getValue(const v8::Local<v8::Object>&, const char*,
+        v8::Local<v8::Value>&) const;
+    bool getCallable(const char*, v8::Local<v8::Object>&) const;
 };
 
 } // namespace blink