Make ElementShadow::oldestShadowRoot() return a reference

third_party/WebKit/Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * 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.
@@ skipping 674 matching lines @@
     ASSERT(host);
     if (ElementShadow* shadow = host->shadow())
         return &shadow->youngestShadowRoot();
     return 0;
 }
 
 ShadowRoot* Internals::oldestShadowRoot(Element* host)
 {
     ASSERT(host);
     if (ElementShadow* shadow = host->shadow())
-        return shadow->oldestShadowRoot();
+        return &shadow->oldestShadowRoot();
     return 0;
 }
 
 ShadowRoot* Internals::youngerShadowRoot(Node* shadow, ExceptionState& exceptionState)
 {
     ASSERT(shadow);
     if (!shadow->isShadowRoot()) {
         exceptionState.throwDOMException(InvalidAccessError, "The node provided is not a shadow root.");
         return 0;
     }
@@ skipping 1921 matching lines @@
 
     return ClientRect::create(FloatRect(node->layoutObject()->visualRect()));
 }
 
 void Internals::crash()
 {
     CHECK(false) << "Intentional crash";
 }
 
 } // namespace blink