Cleanup two trivial PaintOffset bugs in prep for caching paint offset

Source/core/paint/BlockFlowPainter.cpp

Index: Source/core/paint/BlockFlowPainter.cpp
diff --git a/Source/core/paint/BlockFlowPainter.cpp b/Source/core/paint/BlockFlowPainter.cpp
index ebdd561c8eec5f13ce2ae4cee0188fd7918e67c8..95963c2fca7afd6220ecf355ad998b17cbe5bb57 100644
--- a/Source/core/paint/BlockFlowPainter.cpp
+++ b/Source/core/paint/BlockFlowPainter.cpp
@@ -65,7 +65,7 @@ void BlockFlowPainter::paintSelection(const PaintInfo& paintInfo, const LayoutPo
     // Only create a DrawingRecorder and ClipScope if skipRecording is false. This logic is needed
     // because selectionGaps(...) needs to be called even when we do not record.
     bool skipRecording = LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(*paintInfo.context, m_layoutBlockFlow, DisplayItem::SelectionGap);
-    Optional<DrawingRecorder> drawingRecorder;
+    Optional<LayoutObjectDrawingRecorder> drawingRecorder;
     Optional<ClipScope> clipScope;
     if (!skipRecording) {
         drawingRecorder.emplace(*paintInfo.context, m_layoutBlockFlow, DisplayItem::SelectionGap, FloatRect(bounds));