Don't mark a positioned object for layout when we've just laid it out.

Source/core/layout/LayoutBox.cpp

Index: Source/core/layout/LayoutBox.cpp
diff --git a/Source/core/layout/LayoutBox.cpp b/Source/core/layout/LayoutBox.cpp
index a1a8a22276d2d4655eaac626badf3adca8a28e3e..fd1fbaaec60e63c71e0d566af1735bc1564e88e0 100644
--- a/Source/core/layout/LayoutBox.cpp
+++ b/Source/core/layout/LayoutBox.cpp
@@ -1713,7 +1713,6 @@ void LayoutBox::positionLineBox(InlineBox* box)
             // in flow).  This value was cached in the y() of the box.
             layer()->setStaticBlockPosition(box->logicalTop());
         }
-        markStaticPositionedBoxForLayout(box->isHorizontal(), originallyInline);
 
         if (container()->isLayoutInline())
             moveWithEdgeOfInlineContainerIfNecessary(box->isHorizontal());
@@ -1729,15 +1728,6 @@ void LayoutBox::positionLineBox(InlineBox* box)
     }
 }
 
-void LayoutBox::markStaticPositionedBoxForLayout(bool isHorizontal, bool isInline)
-{
-    ASSERT(isOutOfFlowPositioned());
-    if (normalChildNeedsLayout())
-        return;
-    if (isInline ? style()->hasStaticInlinePosition(isHorizontal) : style()->hasStaticBlockPosition(isHorizontal))
-        setChildNeedsLayout(MarkOnlyThis);
-}
-
 void LayoutBox::moveWithEdgeOfInlineContainerIfNecessary(bool isHorizontal)
 {
     ASSERT(isOutOfFlowPositioned() && container()->isLayoutInline() && container()->isRelPositioned());