Make ElementShadow::youngestShadowRoot() return a reference

third_party/WebKit/Source/core/page/FocusController.cpp

 /*
  * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nuanti Ltd.
  *
  * 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 111 matching lines @@
 {
     if (isShadowHost(element))
         return FocusNavigationScope::ownedByShadowHost(element);
     ASSERT(isShadowInsertionPointFocusScopeOwner(element));
     return FocusNavigationScope::ownedByShadowInsertionPoint(toHTMLShadowElement(element));
 }
 
 FocusNavigationScope FocusNavigationScope::ownedByShadowHost(const Element& element)
 {
     ASSERT(isShadowHost(element));
-    return FocusNavigationScope(element.shadow()->youngestShadowRoot());
+    return FocusNavigationScope(&element.shadow()->youngestShadowRoot());
 }
 
 FocusNavigationScope FocusNavigationScope::ownedByIFrame(const HTMLFrameOwnerElement& frame)
 {
     ASSERT(frame.contentFrame());
     ASSERT(frame.contentFrame()->isLocalFrame());
     return FocusNavigationScope(toLocalFrame(frame.contentFrame())->document());
 }
 
 FocusNavigationScope FocusNavigationScope::ownedByShadowInsertionPoint(HTMLShadowElement& shadowInsertionPoint)
@@ skipping 906 matching lines @@
     return consumed;
 }
 
 DEFINE_TRACE(FocusController)
 {
     visitor->trace(m_page);
     visitor->trace(m_focusedFrame);
 }
 
 } // namespace blink