[part 2] Make classes and structures in modules fast-allocated.

Source/modules/push_messaging/PushPermissionStatusCallbacks.h

Index: Source/modules/push_messaging/PushPermissionStatusCallbacks.h
diff --git a/Source/modules/push_messaging/PushPermissionStatusCallbacks.h b/Source/modules/push_messaging/PushPermissionStatusCallbacks.h
index 79d1570d9cf2350b2295b44bda650f448eb8dd7d..35eafa800ad07c90dca373d366dfeb8cc612b788 100644
--- a/Source/modules/push_messaging/PushPermissionStatusCallbacks.h
+++ b/Source/modules/push_messaging/PushPermissionStatusCallbacks.h
@@ -21,6 +21,7 @@ class ScriptPromiseResolver;
 // Will resolve the underlying promise depending on the permission received.
 class PushPermissionStatusCallbacks final : public WebPushPermissionStatusCallbacks {
     WTF_MAKE_NONCOPYABLE(PushPermissionStatusCallbacks);
+    WTF_MAKE_FAST_ALLOCATED(PushPermissionStatusCallbacks);
 
 public:
     explicit PushPermissionStatusCallbacks(ScriptPromiseResolver*);