Allow navigations in subframes to get a ShouldOpenExternalURLsPolicy of "ShouldAllow" <rdar://problem/22485589>
Created attachment 314657 [details] Patch
Created attachment 314659 [details] Patch
Created attachment 314665 [details] Patch for landing
Comment on attachment 314665 [details] Patch for landing Clearing flags on attachment: 314665 Committed r219170: <http://trac.webkit.org/changeset/219170>