Implement closed shadow adjustment for Element.offsetParent

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 1285 matching lines @@
             // For hit-test rect visualization to work, the hit-test rect should
             // be relative to the scrolling layer and in this case the hit-test
             // rect is relative to the element's own GraphicsLayer. So we will have
             // to adjust the rect to be relative to the scrolling layer here.
             // Only when the element's offsetParent == scroller's offsetParent we
             // can compute the element's relative position to the scrolling content
             // in this way.
             if (searchRoot->layoutObject()->offsetParent() == searchRoot->parent()->layoutObject()->offsetParent()) {
                 LayoutBoxModelObject* current = searchRoot->layoutObject();
                 LayoutBoxModelObject* parent = searchRoot->parent()->layoutObject();
-                layerOffset->setWidth((parent->offsetLeft() - current->offsetLeft()).toInt());
-                layerOffset->setHeight((parent->offsetTop() - current->offsetTop()).toInt());
+                layerOffset->setWidth((parent->offsetLeft(parent->offsetParent()) - current->offsetLeft(parent->offsetParent())).toInt());
+                layerOffset->setHeight((parent->offsetTop(parent->offsetParent()) - current->offsetTop(parent->offsetParent())).toInt());
                 return searchRoot->parent();
             }
         }
 
         LayoutRect rect;
         PaintLayer::mapRectInPaintInvalidationContainerToBacking(*searchRoot->layoutObject(), rect);
         *layerOffset = IntSize(rect.x(), rect.y());
         return searchRoot;
     }
 
@@ skipping 1247 matching lines @@
 }
 
 String Internals::getProgrammaticScrollAnimationState(Node* node) const
 {
     if (ScrollableArea* scrollableArea = scrollableAreaForNode(node))
         return scrollableArea->programmaticScrollAnimator().runStateAsText();
     return String();
 }
 
 } // namespace blink