Fix virtual/override/final usage in the rest of Source/core/.

Source/core/paint/LayoutObjectDrawingRecorderTest.cpp

Index: Source/core/paint/LayoutObjectDrawingRecorderTest.cpp
diff --git a/Source/core/paint/LayoutObjectDrawingRecorderTest.cpp b/Source/core/paint/LayoutObjectDrawingRecorderTest.cpp
index 93d8c4524609958083a954a31ffb9f2ccec9e3b6..e4a5c69bfdfa85be800b48379961b3321b79d721 100644
--- a/Source/core/paint/LayoutObjectDrawingRecorderTest.cpp
+++ b/Source/core/paint/LayoutObjectDrawingRecorderTest.cpp
@@ -28,7 +28,7 @@ protected:
     const DisplayItems& newDisplayItemsBeforeUpdate() { return rootDisplayItemList().m_newDisplayItems; }
 
 private:
-    virtual void SetUp() override
+    void SetUp() override
     {
         RuntimeEnabledFeatures::setSlimmingPaintEnabled(true);
 
@@ -39,7 +39,7 @@ private:
         ASSERT_TRUE(m_layoutView);
     }
 
-    virtual void TearDown() override
+    void TearDown() override
     {
         RuntimeEnabledFeatures::setSlimmingPaintEnabled(m_originalSlimmingPaintEnabled);
     }