Have ScriptPromiseResolver on the Oilpan heap always.

Source/modules/permissions/PermissionQueryCallback.h

Index: Source/modules/permissions/PermissionQueryCallback.h
diff --git a/Source/modules/permissions/PermissionQueryCallback.h b/Source/modules/permissions/PermissionQueryCallback.h
index c5631582b2830013d8a202ab6087091da244a758..88965a50e884b89b8059003ecf2984fc6e551f15 100644
--- a/Source/modules/permissions/PermissionQueryCallback.h
+++ b/Source/modules/permissions/PermissionQueryCallback.h
@@ -10,8 +10,6 @@
 #include "public/platform/modules/permissions/WebPermissionStatus.h"
 #include "public/platform/modules/permissions/WebPermissionType.h"
 #include "wtf/Noncopyable.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefPtr.h"
 
 namespace blink {
 
@@ -24,14 +22,14 @@ class ScriptPromiseResolver;
 class PermissionQueryCallback final
     : public WebCallbacks<WebPermissionStatus, void> {
 public:
-    explicit PermissionQueryCallback(PassRefPtr<ScriptPromiseResolver>, WebPermissionType);
+    explicit PermissionQueryCallback(ScriptPromiseResolver*, WebPermissionType);
     ~PermissionQueryCallback() override;
 
     void onSuccess(WebPermissionStatus*) override;
     void onError() override;
 
 private:
-    RefPtr<ScriptPromiseResolver> m_resolver;
+    Persistent<ScriptPromiseResolver> m_resolver;
     WebPermissionType m_permissionType;
 
     WTF_MAKE_NONCOPYABLE(PermissionQueryCallback);