Split custom element script use and move it into bindings

third_party/WebKit/Source/bindings/core/v8/custom/V8HTMLElementCustom.cpp

 // 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.
 
 #include "bindings/core/v8/V8HTMLElement.h"
 
 #include "bindings/core/v8/DOMWrapperWorld.h"
 #include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/ScriptCustomElementDefinition.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8BindingMacros.h"
 #include "bindings/core/v8/V8DOMWrapper.h"
 #include "bindings/core/v8/V8ThrowException.h"
 #include "core/dom/Document.h"
-#include "core/dom/custom/CustomElementDefinition.h"
 #include "core/dom/custom/CustomElementsRegistry.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "platform/RuntimeEnabledFeatures.h"
 
 namespace blink {
 
 void V8HTMLElement::constructorCustom(
     const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     DCHECK(info.IsConstructCall());
 
     v8::Isolate* isolate = info.GetIsolate();
     ScriptState* scriptState = ScriptState::current(isolate);
 
     if (!RuntimeEnabledFeatures::customElementsV1Enabled()
         || !scriptState->world().isMainWorld()) {
         V8ThrowException::throwTypeError(info.GetIsolate(), "Illegal constructor");
         return;
     }
 
     LocalDOMWindow* window = scriptState->domWindow();
-    CustomElementDefinition* def =
-        window->customElements(scriptState)->definitionForConstructor(
+    ScriptCustomElementDefinition* def =
+        ScriptCustomElementDefinition::forConstructor(
             scriptState,
+            window->customElements(),
             info.NewTarget());
     if (!def) {
         V8ThrowException::throwTypeError(isolate, "Illegal constructor");
         return;
     }
 
     // TODO(dominicc): Implement cases where the definition's
     // construction stack is not empty when parser-creation is
     // implemented.
 
@@ skipping 16 matching lines @@
         info.This());
 
     if (!v8CallBoolean(wrapper->SetPrototype(
         scriptState->context(),
         def->prototype(scriptState)))) {
         return;
     }
 }
 
 } // namespace blink