Move continuation getter and setter down to LayoutBlockFlow.

third_party/WebKit/Source/modules/accessibility/AXLayoutObject.cpp

 /*
 * Copyright (C) 2008 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.
 * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 1676 matching lines @@
 Element* AXLayoutObject::anchorElement() const
 {
     if (!m_layoutObject)
         return 0;
 
     AXObjectCacheImpl& cache = axObjectCache();
     LayoutObject* currLayoutObject;
 
     // Search up the layout tree for a LayoutObject with a DOM node. Defer to an earlier continuation, though.
     for (currLayoutObject = m_layoutObject; currLayoutObject && !currLayoutObject->node(); currLayoutObject = currLayoutObject->parent()) {
-        if (currLayoutObject->isAnonymousBlock()) {
-            LayoutObject* continuation = toLayoutBlock(currLayoutObject)->continuation();
+        if (currLayoutObject->isAnonymousBlock() && currLayoutObject->isLayoutBlockFlow()) {
+            LayoutObject* continuation = toLayoutBlockFlow(currLayoutObject)->continuation();
             if (continuation)
                 return cache.getOrCreate(continuation)->anchorElement();
         }
     }
 
     // bail if none found
     if (!currLayoutObject)
         return 0;
 
     // search up the DOM tree for an anchor element
@@ skipping 767 matching lines @@
         if (label && label->layoutObject()) {
             LayoutRect labelRect = axObjectCache().getOrCreate(label)->elementRect();
             result.unite(labelRect);
         }
     }
 
     return result;
 }
 
 } // namespace blink