Have ScriptPromiseResolver on the Oilpan heap always.

Source/modules/geofencing/Geofencing.cpp

Index: Source/modules/geofencing/Geofencing.cpp
diff --git a/Source/modules/geofencing/Geofencing.cpp b/Source/modules/geofencing/Geofencing.cpp
index 550f05205312aeeb3a3d389e643db99c62560618..d83b38af776c68d794ed5871cd002e63be0f07d5 100644
--- a/Source/modules/geofencing/Geofencing.cpp
+++ b/Source/modules/geofencing/Geofencing.cpp
@@ -53,7 +53,7 @@ ScriptPromise Geofencing::registerRegion(ScriptState* scriptState, GeofencingReg
     if (!provider)
         return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError));
 
-    RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
     WebGeofencingCallbacks* callbacks = new CallbackPromiseAdapter<void, GeofencingError>(resolver);
     WebServiceWorkerRegistration* serviceWorkerRegistration = nullptr;
@@ -69,7 +69,7 @@ ScriptPromise Geofencing::unregisterRegion(ScriptState* scriptState, const Strin
     if (!provider)
         return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError));
 
-    RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
     WebGeofencingCallbacks* callbacks = new CallbackPromiseAdapter<void, GeofencingError>(resolver);
     WebServiceWorkerRegistration* serviceWorkerRegistration = nullptr;
@@ -85,7 +85,7 @@ ScriptPromise Geofencing::getRegisteredRegions(ScriptState* scriptState) const
     if (!provider)
         return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError));
 
-    RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
     WebGeofencingRegionsCallbacks* callbacks = new CallbackPromiseAdapter<RegionArray, GeofencingError>(resolver);
     WebServiceWorkerRegistration* serviceWorkerRegistration = nullptr;