Implement closed shadow adjustment for Element.offsetParent

third_party/WebKit/Source/core/layout/LayoutInline.cpp

Index: third_party/WebKit/Source/core/layout/LayoutInline.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutInline.cpp b/third_party/WebKit/Source/core/layout/LayoutInline.cpp
index c9923aae4dc224164d48d36654ca1ca617237266..fefc3724aafd8d8f7eade6f11417d334acc9a356 100644
--- a/third_party/WebKit/Source/core/layout/LayoutInline.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutInline.cpp
@@ -686,22 +686,22 @@ void LayoutInline::absoluteQuads(Vector<FloatQuad>& quads) const
         continuation->absoluteQuads(quads);
 }
 
-LayoutUnit LayoutInline::offsetLeft() const
+LayoutUnit LayoutInline::offsetLeft(const Element* parent) const
 {
     LayoutPoint topLeft;
     if (InlineBox* firstBox = firstLineBoxIncludingCulling()) {
         topLeft = firstBox->topLeft();
     }
-    return adjustedPositionRelativeToOffsetParent(topLeft).x();
+    return adjustedPositionRelativeTo(topLeft, parent).x();
 }
 
-LayoutUnit LayoutInline::offsetTop() const
+LayoutUnit LayoutInline::offsetTop(const Element* parent) const
 {
     LayoutPoint topLeft;
     if (InlineBox* firstBox = firstLineBoxIncludingCulling()) {
         topLeft = firstBox->topLeft();
     }
-    return adjustedPositionRelativeToOffsetParent(topLeft).y();
+    return adjustedPositionRelativeTo(topLeft, parent).y();
 }
 
 static LayoutUnit computeMargin(const LayoutInline* layoutObject, const Length& margin)