Add the CustomElementsRegistry interface behind the flag

third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 21 matching lines @@
 #include "core/css/CSSRuleList.h"
 #include "core/css/DOMWindowCSS.h"
 #include "core/css/MediaQueryList.h"
 #include "core/css/MediaQueryMatcher.h"
 #include "core/css/StyleMedia.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/dom/DOMImplementation.h"
 #include "core/dom/ExecutionContextTask.h"
 #include "core/dom/FrameRequestCallback.h"
 #include "core/dom/SandboxFlags.h"
+#include "core/dom/custom/CustomElementsRegistry.h"
 #include "core/editing/Editor.h"
 #include "core/events/DOMWindowEventQueue.h"
 #include "core/events/HashChangeEvent.h"
 #include "core/events/MessageEvent.h"
 #include "core/events/PageTransitionEvent.h"
 #include "core/events/PopStateEvent.h"
 #include "core/events/ScopedEventQueue.h"
 #include "core/frame/BarProp.h"
 #include "core/frame/Console.h"
 #include "core/frame/EventHandlerRegistry.h"
@@ skipping 493 matching lines @@
     m_history = nullptr;
     m_locationbar = nullptr;
     m_menubar = nullptr;
     m_personalbar = nullptr;
     m_scrollbars = nullptr;
     m_statusbar = nullptr;
     m_toolbar = nullptr;
     m_console = nullptr;
     m_navigator = nullptr;
     m_media = nullptr;
+    m_customElements = nullptr;
     m_applicationCache = nullptr;
 #if ENABLE(ASSERT)
     m_hasBeenReset = true;
 #endif
 
     LocalDOMWindow::notifyContextDestroyed();
 }
 
 void LocalDOMWindow::sendOrientationChangeEvent()
 {
@@ skipping 736 matching lines @@
         return document->requestIdleCallback(callback, options);
     return 0;
 }
 
 void LocalDOMWindow::cancelIdleCallback(int id)
 {
     if (Document* document = this->document())
         document->cancelIdleCallback(id);
 }
 
+CustomElementsRegistry* LocalDOMWindow::customElements() const
+{
+    if (!m_customElements)
+        m_customElements = CustomElementsRegistry::create();
+    return m_customElements.get();
+}
+
 bool LocalDOMWindow::addEventListenerInternal(const AtomicString& eventType, EventListener* listener, const EventListenerOptions& options)
 {
     if (!EventTarget::addEventListenerInternal(eventType, listener, options))
         return false;
 
     if (frame() && frame()->host())
         frame()->host()->eventHandlerRegistry().didAddEventHandler(*this, eventType, options);
 
     if (Document* document = this->document()) {
         document->addListenerTypeIfNeeded(eventType);
@@ skipping 176 matching lines @@
     visitor->trace(m_history);
     visitor->trace(m_locationbar);
     visitor->trace(m_menubar);
     visitor->trace(m_personalbar);
     visitor->trace(m_scrollbars);
     visitor->trace(m_statusbar);
     visitor->trace(m_toolbar);
     visitor->trace(m_console);
     visitor->trace(m_navigator);
     visitor->trace(m_media);
+    visitor->trace(m_customElements);
     visitor->trace(m_applicationCache);
     visitor->trace(m_eventQueue);
     visitor->trace(m_postMessageTimers);
     DOMWindow::trace(visitor);
     Supplementable<LocalDOMWindow>::trace(visitor);
     DOMWindowLifecycleNotifier::trace(visitor);
 }
 
 LocalFrame* LocalDOMWindow::frame() const
 {
     // If the LocalDOMWindow still has a frame reference, that frame must point
     // back to this LocalDOMWindow: otherwise, it's easy to get into a situation
     // where script execution leaks between different LocalDOMWindows.
     if (m_frameObserver->frame())
         ASSERT_WITH_SECURITY_IMPLICATION(m_frameObserver->frame()->domWindow() == this);
     return m_frameObserver->frame();
 }
 
 } // namespace blink