Remove RenderSelectionInfo

Source/core/rendering/RenderListMarker.cpp

Index: Source/core/rendering/RenderListMarker.cpp
diff --git a/Source/core/rendering/RenderListMarker.cpp b/Source/core/rendering/RenderListMarker.cpp
index 79333f5b9ddeb833f895f90618db5b26dcb60863..8924b0b090c4b72d7aab6a20053bb70cf8e2c0da 100644
--- a/Source/core/rendering/RenderListMarker.cpp
+++ b/Source/core/rendering/RenderListMarker.cpp
@@ -1630,6 +1630,9 @@ LayoutRect RenderListMarker::selectionRectForPaintInvalidation(const RenderLayer
     RootInlineBox& root = inlineBoxWrapper()->root();
     LayoutRect rect(0, root.selectionTop() - y(), width(), root.selectionHeight());
     mapRectToPaintInvalidationBacking(paintInvalidationContainer, rect, 0);
+    // FIXME: groupedMapping() leaks the squashing abstraction.
+    if (paintInvalidationContainer->layer()->groupedMapping())
+        RenderLayer::mapRectToPaintBackingCoordinates(paintInvalidationContainer, rect);
     return rect;
 }