WebPageProxy::dataSelectionForPasteboard should check the result of SharedMemory::map. <rdar://problem/58701732>
Created attachment 392774 [details] Patch v1
Comment on attachment 392774 [details] Patch v1 Clearing flags on attachment: 392774 Committed r258149: <https://trac.webkit.org/changeset/258149>
All reviewed patches have been landed. Closing bug.