Have ScriptPromiseResolver on the Oilpan heap always.

Source/modules/bluetooth/BluetoothDevice.cpp

Index: Source/modules/bluetooth/BluetoothDevice.cpp
diff --git a/Source/modules/bluetooth/BluetoothDevice.cpp b/Source/modules/bluetooth/BluetoothDevice.cpp
index 0eb6979bd1cf7ed93ae8d548da20ee6cef42382a..138abbe862f4f5b3e390458162ffc4cae9cba78e 100644
--- a/Source/modules/bluetooth/BluetoothDevice.cpp
+++ b/Source/modules/bluetooth/BluetoothDevice.cpp
@@ -81,7 +81,7 @@ ScriptPromise BluetoothDevice::connectGATT(ScriptState* scriptState)
     WebBluetooth* webbluetooth = BluetoothSupplement::from(scriptState);
     if (!webbluetooth)
         return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(NotSupportedError));
-    RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
     webbluetooth->connectGATT(instanceID(), new CallbackPromiseAdapter<BluetoothGATTRemoteServer, BluetoothError>(resolver));
     return promise;