Revert of Move speech module over to Oilpan.

Source/modules/speech/SpeechRecognitionAlternative.h

Index: Source/modules/speech/SpeechRecognitionAlternative.h
diff --git a/Source/modules/speech/SpeechRecognitionAlternative.h b/Source/modules/speech/SpeechRecognitionAlternative.h
index e6280a963e8f50670b10c086dc3a3790f88dd2d9..464fe9e276e55c1839128720679955974880448b 100644
--- a/Source/modules/speech/SpeechRecognitionAlternative.h
+++ b/Source/modules/speech/SpeechRecognitionAlternative.h
@@ -27,7 +27,6 @@
 #define SpeechRecognitionAlternative_h
 
 #include "bindings/v8/ScriptWrappable.h"
-#include "heap/Handle.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
@@ -35,15 +34,12 @@
 
 class ExecutionContext;
 
-class SpeechRecognitionAlternative : public RefCountedWillBeGarbageCollectedFinalized<SpeechRecognitionAlternative>, public ScriptWrappable {
-    DECLARE_GC_INFO;
+class SpeechRecognitionAlternative : public ScriptWrappable, public RefCounted<SpeechRecognitionAlternative> {
 public:
-    static PassRefPtrWillBeRawPtr<SpeechRecognitionAlternative> create(const String&, double);
+    static PassRefPtr<SpeechRecognitionAlternative> create(const String&, double);
 
     const String& transcript() const { return m_transcript; }
     double confidence() const { return m_confidence; }
-
-    void trace(Visitor*) { }
 
 private:
     SpeechRecognitionAlternative(const String&, double);