Remove RenderSelectionInfo

Source/core/rendering/RenderBlock.cpp

Index: Source/core/rendering/RenderBlock.cpp
diff --git a/Source/core/rendering/RenderBlock.cpp b/Source/core/rendering/RenderBlock.cpp
index 182dc6a13586b6f5aa6979b058f1bb34642d9eef..ab942346a1399ea74f8dac9dd39f8c77db74848b 100644
--- a/Source/core/rendering/RenderBlock.cpp
+++ b/Source/core/rendering/RenderBlock.cpp
@@ -242,6 +242,14 @@ void RenderBlock::destroy()
 #endif
 }
 
+LayoutRect RenderBlock::selectionRectForPaintInvalidation(const RenderLayerModelObject* paintInvalidationContainer) const
+{
+    LayoutRect rect = selectionGapRectsForPaintInvalidation(paintInvalidationContainer);
+    // FIXME: groupedMapping() leaks the squashing abstraction.
+    if (paintInvalidationContainer->layer()->groupedMapping())
+        RenderLayer::mapRectToPaintBackingCoordinates(paintInvalidationContainer, rect);
+    return rect;
+}
 void RenderBlock::willBeDestroyed()
 {
     // Mark as being destroyed to avoid trouble with merges in removeChild().