FrameLoader::commitProvisionalLoad() calls cachedPage->restore(m_frame->page()); which calls documentDidBecomeActive(). It then calls m_frame->document()->documentDidBecomeActive() a second time lower down.
https://github.com/WebKit/WebKit/blob/7de67f9a0ccc4fc8ce195e32f61e7873ad81345e/Source/WebCore/loader/FrameLoader.cpp#L2016 Is this needed now or this logic has been reworked? Thanks!