Implement closed shadow adjustment for Element.offsetParent

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

 /*
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2007 Apple Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 185 matching lines @@
     printContext.begin(pageRect.width(), pageRect.height());
 
     LayoutBoxModelObject* box = enclosingBoxModelObject(element->layoutObject());
     if (!box)
         return -1;
 
     FloatSize scaledPageSize = pageSizeInPixels;
     scaledPageSize.scale(frame->view()->contentsSize().width() / pageRect.width());
     printContext.computePageRectsWithPageSize(scaledPageSize);
 
-    int top = box->pixelSnappedOffsetTop();
-    int left = box->pixelSnappedOffsetLeft();
+    int top = box->pixelSnappedOffsetTop(box->offsetParent());
+    int left = box->pixelSnappedOffsetLeft(box->offsetParent());
     size_t pageNumber = 0;
     for (; pageNumber < printContext.pageCount(); pageNumber++) {
         const IntRect& page = printContext.pageRect(pageNumber);
         if (page.x() <= left && left < page.maxX() && page.y() <= top && top < page.maxY())
             return pageNumber;
     }
     return -1;
 }
 
 void PrintContext::collectLinkedDestinations(Node* node)
@@ skipping 97 matching lines @@
     return printContext.pageCount();
 }
 
 DEFINE_TRACE(PrintContext)
 {
     visitor->trace(m_frame);
     visitor->trace(m_linkedDestinations);
 }
 
 } // namespace blink