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

Source/core/paint/TextPainterTest.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/paint/TextPainter.h"
 
 #include "core/CSSPropertyNames.h"
 #include "core/CSSValueKeywords.h"
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/frame/Settings.h"
 #include "core/layout/LayoutTestHelper.h"
 #include "core/layout/LayoutText.h"
 #include "core/style/ShadowData.h"
 #include "core/style/ShadowList.h"
 #include <gtest/gtest.h>
 
 namespace blink {
 namespace {
 
 class TextPainterTest : public RenderingTest {
 public:
     TextPainterTest() : m_layoutText(nullptr) { }
 
 protected:
     LayoutText* layoutText() { return m_layoutText; }
 
 private:
-    virtual void SetUp() override
+    void SetUp() override
     {
         RenderingTest::SetUp();
         setBodyInnerHTML("Hello world");
         m_layoutText = toLayoutText(document().body()->firstChild()->layoutObject());
         ASSERT_TRUE(m_layoutText);
         ASSERT_EQ("Hello world", m_layoutText->text());
     }
 
     LayoutText* m_layoutText;
 };
@@ skipping 82 matching lines @@
 
     TextPainter::Style textStyle = TextPainter::textPaintingStyle(
         *layoutText(), layoutText()->styleRef(), false /* usesTextAsClip */, true /* isPrinting */);
     EXPECT_EQ(Color(255, 220, 220).dark(), textStyle.fillColor);
     EXPECT_EQ(Color(220, 255, 220).dark(), textStyle.strokeColor);
     EXPECT_EQ(Color(220, 220, 255).dark(), textStyle.emphasisMarkColor);
 }
 
 } // namespace
 } // namespace blink