Replacing the OVERRIDE with override and FINAL with final

Source/platform/animation/TimingFunction.h

Index: Source/platform/animation/TimingFunction.h
diff --git a/Source/platform/animation/TimingFunction.h b/Source/platform/animation/TimingFunction.h
index 3445300c25f24d79f16393902a8825ee4156a856..c53cd9485fbab4c16df426ac93216d4c92aa57a3 100644
--- a/Source/platform/animation/TimingFunction.h
+++ b/Source/platform/animation/TimingFunction.h
@@ -69,7 +69,7 @@ private:
     Type m_type;
 };
 
-class PLATFORM_EXPORT LinearTimingFunction FINAL : public TimingFunction {
+class PLATFORM_EXPORT LinearTimingFunction final : public TimingFunction {
 public:
     static LinearTimingFunction* shared()
     {
@@ -91,7 +91,7 @@ private:
     }
 };
 
-class PLATFORM_EXPORT CubicBezierTimingFunction FINAL : public TimingFunction {
+class PLATFORM_EXPORT CubicBezierTimingFunction final : public TimingFunction {
 public:
     enum SubType {
         Ease,
@@ -168,7 +168,7 @@ private:
     mutable OwnPtr<UnitBezier> m_bezier;
 };
 
-class PLATFORM_EXPORT StepsTimingFunction FINAL : public TimingFunction {
+class PLATFORM_EXPORT StepsTimingFunction final : public TimingFunction {
 public:
     enum StepAtPosition {
         Start,