Have ScriptPromiseResolver on the Oilpan heap always.

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 89cf867e25111dbcc2df2cf38280208efb4e38da..838d443c4e637a56fb2d5876ed899967cd2a0b89 100644
--- a/Source/modules/push_messaging/PushPermissionStatusCallbacks.h
+++ b/Source/modules/push_messaging/PushPermissionStatusCallbacks.h
@@ -9,8 +9,6 @@
 #include "public/platform/modules/push_messaging/WebPushPermissionStatus.h"
 #include "public/platform/modules/push_messaging/WebPushProvider.h"
 #include "wtf/Noncopyable.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefPtr.h"
 
 namespace WTF {
 class String;
@@ -25,7 +23,7 @@ class PushPermissionStatusCallbacks final : public WebPushPermissionStatusCallba
     WTF_MAKE_NONCOPYABLE(PushPermissionStatusCallbacks);
 
 public:
-    explicit PushPermissionStatusCallbacks(PassRefPtrWillBeRawPtr<ScriptPromiseResolver>);
+    explicit PushPermissionStatusCallbacks(ScriptPromiseResolver*);
     ~PushPermissionStatusCallbacks() override;
 
     void onSuccess(WebPushPermissionStatus*) override;
@@ -35,7 +33,7 @@ public:
 
 private:
     static WTF::String permissionString(WebPushPermissionStatus);
-    RefPtrWillBePersistent<ScriptPromiseResolver> m_resolver;
+    Persistent<ScriptPromiseResolver> m_resolver;
 };
 
 } // namespace blink