Replace FINAL and OVERRIDE with their C++11 counterparts in Source/core/html

Source/core/html/shadow/ClearButtonElement.h

Index: Source/core/html/shadow/ClearButtonElement.h
diff --git a/Source/core/html/shadow/ClearButtonElement.h b/Source/core/html/shadow/ClearButtonElement.h
index 2364ff794d5d690e0db872ce607c386963528285..0b78b36ba26cb77ddf91204336f36d846a837066 100644
--- a/Source/core/html/shadow/ClearButtonElement.h
+++ b/Source/core/html/shadow/ClearButtonElement.h
@@ -31,7 +31,7 @@
 
 namespace blink {
 
-class ClearButtonElement FINAL : public HTMLDivElement {
+class ClearButtonElement final : public HTMLDivElement {
 public:
     class ClearButtonOwner : public WillBeGarbageCollectedMixin {
     public:
@@ -45,14 +45,14 @@ public:
     void releaseCapture();
     void removeClearButtonOwner() { m_clearButtonOwner = nullptr; }
 
-    virtual void trace(Visitor*) OVERRIDE;
+    virtual void trace(Visitor*) override;
 
 private:
     ClearButtonElement(Document&, ClearButtonOwner&);
-    virtual void detach(const AttachContext& = AttachContext()) OVERRIDE;
-    virtual bool isMouseFocusable() const OVERRIDE { return false; }
-    virtual void defaultEventHandler(Event*) OVERRIDE;
-    virtual bool isClearButtonElement() const OVERRIDE;
+    virtual void detach(const AttachContext& = AttachContext()) override;
+    virtual bool isMouseFocusable() const override { return false; }
+    virtual void defaultEventHandler(Event*) override;
+    virtual bool isClearButtonElement() const override;
 
     RawPtrWillBeMember<ClearButtonOwner> m_clearButtonOwner;
     bool m_capturing;