Remove clips where we can show that they are unnecessary.

Source/core/rendering/RenderListItem.cpp

Index: Source/core/rendering/RenderListItem.cpp
diff --git a/Source/core/rendering/RenderListItem.cpp b/Source/core/rendering/RenderListItem.cpp
index fd911150e8566d48e3f436e4d2474847e1fd00e5..b8b28554051478ed17f82f524eecfa3b38a3ca2e 100644
--- a/Source/core/rendering/RenderListItem.cpp
+++ b/Source/core/rendering/RenderListItem.cpp
@@ -375,7 +375,7 @@ void RenderListItem::positionListMarker()
                         adjustOverflow = true;
                 }
                 box->setOverflowFromLogicalRects(newLogicalLayoutOverflowRect, newLogicalVisualOverflowRect, lineTop, lineBottom);
-                
+
                 if (box->boxModelObject()->hasSelfPaintingLayer())
                     hitSelfPaintingLayer = true;
             }
@@ -390,16 +390,16 @@ void RenderListItem::positionListMarker()
             bool propagateLayoutOverflow = true;
             do {
                 o = o->parentBox();
-                if (o->hasOverflowClip())
-                    propagateVisualOverflow = false;
                 if (o->isRenderBlock()) {
                     if (propagateVisualOverflow)
-                        toRenderBlock(o)->addVisualOverflow(markerRect);
+                        toRenderBlock(o)->addVisualOverflow(markerRect, VisualOverflowClippedByContentsClip);
                     if (propagateLayoutOverflow)
                         toRenderBlock(o)->addLayoutOverflow(markerRect);
                 }
-                if (o->hasOverflowClip())
+                if (o->hasOverflowClip()) {
+                    propagateVisualOverflow = false;
                     propagateLayoutOverflow = false;
+                }
                 if (o->hasSelfPaintingLayer())
                     propagateVisualOverflow = false;
                 markerRect.moveBy(-o->location());