Add feature counting support and use it to log page cache failure reasons (for now). Support can be extended to other platform later but this patch will only provide an implementation for iOS. Radar: <rdar://problem/19255690> / <rdar://problem/19255632>
Created attachment 243310 [details] WIP Patch
Created attachment 243320 [details] Patch
Comment on attachment 243320 [details] Patch Clearing flags on attachment: 243320 Committed r177328: <http://trac.webkit.org/changeset/177328>
All reviewed patches have been landed. Closing bug.