Summary: public
Recent refactoring of `XMLHttpRequestBase` made use of `abortRequest` instead of the existing `cancelRequest` in iOS. This will simply alias `abortRequest` to `cancelRequest`.
Reviewed By: nicklockwood
Differential Revision: D2671189
fb-gh-sync-id: 6987d004e5a54973c330e19a1baba19ee41170f0