Replacing the OVERRIDE with override and FINAL with final

Source/platform/audio/Biquad.h

Index: Source/platform/audio/Biquad.h
diff --git a/Source/platform/audio/Biquad.h b/Source/platform/audio/Biquad.h
index 475ceac7029e28a1ba666e0ac4b87eeefce4189c..3fcc1d440ef7da70c49b211f7f9d2cb57357ba35 100644
--- a/Source/platform/audio/Biquad.h
+++ b/Source/platform/audio/Biquad.h
@@ -45,7 +45,7 @@ namespace blink {
 // It can be configured to a number of common and very useful filters:
 //    lowpass, highpass, shelving, parameteric, notch, allpass, ...
 
-class PLATFORM_EXPORT Biquad FINAL {
+class PLATFORM_EXPORT Biquad final {
 public:
     Biquad();
     ~Biquad();