Fix virtual/override/final usage in Source/platform/.

Source/platform/transforms/RotateTransformOperation.h

Index: Source/platform/transforms/RotateTransformOperation.h
diff --git a/Source/platform/transforms/RotateTransformOperation.h b/Source/platform/transforms/RotateTransformOperation.h
index 00f85a5fb05942766cb7e7c0f7ef807ecb2febf7..37614f9ae251a17472a748baf57e2ac27635534d 100644
--- a/Source/platform/transforms/RotateTransformOperation.h
+++ b/Source/platform/transforms/RotateTransformOperation.h
@@ -50,9 +50,9 @@ public:
     static bool shareSameAxis(const RotateTransformOperation* fromRotation, const RotateTransformOperation* toRotation, FloatPoint3D* axis, double* fromAngle, double* toAngle);
 
     virtual bool canBlendWith(const TransformOperation& other) const;
-    virtual OperationType type() const override { return m_type; }
+    OperationType type() const override { return m_type; }
 
-    virtual void apply(TransformationMatrix& transform, const FloatSize& /*borderBoxSize*/) const override
+    void apply(TransformationMatrix& transform, const FloatSize& /*borderBoxSize*/) const override
     {
         transform.rotate3d(m_x, m_y, m_z, m_angle);
     }
@@ -60,7 +60,7 @@ public:
     static bool isMatchingOperationType(OperationType type) { return type == Rotate || type == RotateX || type == RotateY || type == RotateZ || type == Rotate3D; }
 
 private:
-    virtual bool operator==(const TransformOperation& o) const override
+    bool operator==(const TransformOperation& o) const override
     {
         if (!isSameType(o))
             return false;
@@ -68,7 +68,7 @@ private:
         return m_x == r->m_x && m_y == r->m_y && m_z == r->m_z && m_angle == r->m_angle;
     }
 
-    virtual PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) override;
+    PassRefPtr<TransformOperation> blend(const TransformOperation* from, double progress, bool blendToIdentity = false) override;
 
     RotateTransformOperation(double x, double y, double z, double angle, OperationType type)
         : m_x(x)