WebCore::BackgroundFetchOptions fails to initialize instance variables due to missing constructors. Found by clang static analyzer. Regressed in: Add background fetch WebIDL https://bugs.webkit.org/show_bug.cgi?id=251980 rdar://problem/105213321 <https://commits.webkit.org/260532@main>
<rdar://problem/129924024>
Pull request: https://github.com/WebKit/WebKit/pull/29861