In WK2, we need to make a remote token for the window element. Currently, we ask for [self window] in WKView. However, this doesn't allow us to override what window is used in accessibility for that specific WKView In the case of Safari reader, we want accessibility to return the browser window, instead of the reader window.
rdar://9205657
Created attachment 87425 [details] patch
http://trac.webkit.org/changeset/82372