Fix virtual/override/final usage in Source/core/{animation,css,style}/.

Source/core/css/MediaValuesDynamic.h

 // 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.
 
 #ifndef MediaValuesDynamic_h
 #define MediaValuesDynamic_h
 
 #include "core/css/MediaValues.h"
 
 namespace blink {
 
 class Document;
 
 class MediaValuesDynamic final : public MediaValues {
 public:
     static PassRefPtr<MediaValues> create(Document&);
     static PassRefPtr<MediaValues> create(LocalFrame*);
-    virtual PassRefPtr<MediaValues> copy() const override;
-    virtual bool isSafeToSendToAnotherThread() const override;
-    virtual bool computeLength(double value, CSSPrimitiveValue::UnitType, int& result) const override;
-    virtual bool computeLength(double value, CSSPrimitiveValue::UnitType, double& result) const override;
+    PassRefPtr<MediaValues> copy() const override;
+    bool isSafeToSendToAnotherThread() const override;
+    bool computeLength(double value, CSSPrimitiveValue::UnitType, int& result) const override;
+    bool computeLength(double value, CSSPrimitiveValue::UnitType, double& result) const override;
 
-    virtual int viewportWidth() const override;
-    virtual int viewportHeight() const override;
-    virtual int deviceWidth() const override;
-    virtual int deviceHeight() const override;
-    virtual float devicePixelRatio() const override;
-    virtual int colorBitsPerComponent() const override;
-    virtual int monochromeBitsPerComponent() const override;
-    virtual PointerType primaryPointerType() const override;
-    virtual int availablePointerTypes() const override;
-    virtual HoverType primaryHoverType() const override;
-    virtual int availableHoverTypes() const override;
-    virtual bool threeDEnabled() const override;
-    virtual bool strictMode() const override;
-    virtual const String mediaType() const override;
-    virtual WebDisplayMode displayMode() const override;
-    virtual Document* document() const override;
-    virtual bool hasValues() const override;
+    int viewportWidth() const override;
+    int viewportHeight() const override;
+    int deviceWidth() const override;
+    int deviceHeight() const override;
+    float devicePixelRatio() const override;
+    int colorBitsPerComponent() const override;
+    int monochromeBitsPerComponent() const override;
+    PointerType primaryPointerType() const override;
+    int availablePointerTypes() const override;
+    HoverType primaryHoverType() const override;
+    int availableHoverTypes() const override;
+    bool threeDEnabled() const override;
+    bool strictMode() const override;
+    const String mediaType() const override;
+    WebDisplayMode displayMode() const override;
+    Document* document() const override;
+    bool hasValues() const override;
 
 protected:
     MediaValuesDynamic(LocalFrame*);
 
     // This raw ptr is safe, as MediaValues would not outlive MediaQueryEvaluator, and
     // MediaQueryEvaluator is reset on |Document::detach|.
     // FIXME: Oilpan: This raw ptr should be changed to a Member when LocalFrame is migrated to the heap.
     LocalFrame* m_frame;
 };
 
 } // namespace
 
 #endif // MediaValuesDynamic_h