Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/speech/SpeechSynthesisUtterance.h

Index: Source/modules/speech/SpeechSynthesisUtterance.h
diff --git a/Source/modules/speech/SpeechSynthesisUtterance.h b/Source/modules/speech/SpeechSynthesisUtterance.h
index 555f335a26dc0fed28c02a9ae163aaa19c12dd3e..f381ccbb0308bb9253d2a1feefee38f38d0f483d 100644
--- a/Source/modules/speech/SpeechSynthesisUtterance.h
+++ b/Source/modules/speech/SpeechSynthesisUtterance.h
@@ -36,12 +36,12 @@
 
 namespace WebCore {
 
-class SpeechSynthesisUtterance : public PlatformSpeechSynthesisUtteranceClient, public ScriptWrappable, public RefCounted<SpeechSynthesisUtterance>, public ContextLifecycleObserver, public EventTargetWithInlineData {
+class SpeechSynthesisUtterance FINAL : public PlatformSpeechSynthesisUtteranceClient, public ScriptWrappable, public RefCounted<SpeechSynthesisUtterance>, public ContextLifecycleObserver, public EventTargetWithInlineData {
     REFCOUNTED_EVENT_TARGET(SpeechSynthesisUtterance);
 public:
     static PassRefPtr<SpeechSynthesisUtterance> create(ExecutionContext*, const String&);
 
-    ~SpeechSynthesisUtterance();
+    virtual ~SpeechSynthesisUtterance();
 
     const String& text() const { return m_platformUtterance->text(); }
     void setText(const String& text) { m_platformUtterance->setText(text); }
@@ -72,7 +72,7 @@ public:
     DEFINE_ATTRIBUTE_EVENT_LISTENER(mark);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(boundary);
 
-    virtual ExecutionContext* executionContext() const;
+    virtual ExecutionContext* executionContext() const OVERRIDE;
 
     PlatformSpeechSynthesisUtterance* platformUtterance() const { return m_platformUtterance.get(); }