Remove unneeded destructors and add finalization support to various classes.

Source/modules/speech/SpeechRecognitionResult.h

Index: Source/modules/speech/SpeechRecognitionResult.h
diff --git a/Source/modules/speech/SpeechRecognitionResult.h b/Source/modules/speech/SpeechRecognitionResult.h
index f201e2e0d251a06ddabd8df730a2029a4412051d..c119e6f52c559916097874601ce64b31b8e9659d 100644
--- a/Source/modules/speech/SpeechRecognitionResult.h
+++ b/Source/modules/speech/SpeechRecognitionResult.h
@@ -37,7 +37,7 @@ namespace WebCore {
 // FIXME: oilpan: the platform outer layer (WebSpeechRecognitionResult) depends on
 // holding a WebPrivatePtr (a RefPtr) to this result object. When/if such pointers
 // can be to GCed objects, we can drop the extra reference counting layer.
-class SpeechRecognitionResult : public RefCountedWillBeGarbageCollected<SpeechRecognitionResult>, public ScriptWrappable {
+class SpeechRecognitionResult : public RefCountedWillBeGarbageCollectedFinalized<SpeechRecognitionResult>, public ScriptWrappable {
 public:
     ~SpeechRecognitionResult();
     static PassRefPtrWillBeRawPtr<SpeechRecognitionResult> create(const WillBeHeapVector<RefPtrWillBeMember<SpeechRecognitionAlternative> >&, bool final);