Fix error handling of ContentExtensionsManager when the top level input is unusable
Created attachment 244323 [details] Patch
Comment on attachment 244323 [details] Patch r=me
Comment on attachment 244323 [details] Patch Clearing flags on attachment: 244323 Committed r178194: <http://trac.webkit.org/changeset/178194>
All reviewed patches have been landed. Closing bug.