Fix selection residue in sub-pixel positioned element

Source/core/rendering/RenderSelectionInfo.h

Index: Source/core/rendering/RenderSelectionInfo.h
diff --git a/Source/core/rendering/RenderSelectionInfo.h b/Source/core/rendering/RenderSelectionInfo.h
index 234fbe0aac5bc9221e8abac2ac4a52fa58f07b3e..7dfc05941e8d0abdf233f025fe206cef7be97b07 100644
--- a/Source/core/rendering/RenderSelectionInfo.h
+++ b/Source/core/rendering/RenderSelectionInfo.h
@@ -75,7 +75,7 @@ public:
 
     void repaint()
     {
-        m_object->invalidatePaintUsingContainer(m_repaintContainer, m_rect, InvalidationSelection);
+        m_object->invalidatePaintUsingContainer(m_repaintContainer, enclosingIntRect(m_rect), InvalidationSelection);
     }
 
     LayoutRect rect() const { return m_rect; }
@@ -105,7 +105,7 @@ public:
         // repaintContainer as the render object. Find out why it does that and fix.
         if (m_repaintContainer && m_repaintContainer->layer()->groupedMapping())
             RenderLayer::mapRectToPaintInvalidationBacking(m_repaintContainer, m_repaintContainer, repaintRect);
-        m_object->invalidatePaintUsingContainer(m_repaintContainer, repaintRect, InvalidationSelection);
+        m_object->invalidatePaintUsingContainer(m_repaintContainer, enclosingIntRect(repaintRect), InvalidationSelection);
     }
 
     RenderBlock* block() const { return toRenderBlock(m_object); }