bindings: Adds virtual ScriptWrappable::wrap method.

Source/modules/speech/SpeechSynthesis.h

Index: Source/modules/speech/SpeechSynthesis.h
diff --git a/Source/modules/speech/SpeechSynthesis.h b/Source/modules/speech/SpeechSynthesis.h
index e2698ab529abb15236935dce6bf420bd05d2af40..73cfc635069bbafdee9d06d24568ba4a3bd5f365 100644
--- a/Source/modules/speech/SpeechSynthesis.h
+++ b/Source/modules/speech/SpeechSynthesis.h
@@ -41,6 +41,7 @@ class PlatformSpeechSynthesizerClient;
 
 class SpeechSynthesis FINAL : public RefCountedGarbageCollectedWillBeGarbageCollectedFinalized<SpeechSynthesis>, public PlatformSpeechSynthesizerClient, public ContextLifecycleObserver, public EventTargetWithInlineData {
     DEFINE_EVENT_TARGET_REFCOUNTING_WILL_BE_REMOVED(RefCountedGarbageCollected<SpeechSynthesis>);
+    DEFINE_WRAPPERTYPEINFO();
     USING_GARBAGE_COLLECTED_MIXIN(SpeechSynthesis);
 public:
     static SpeechSynthesis* create(ExecutionContext*);