-webProcessPlugInBrowserContextController:renderingProgressDidChange: should take a _WKRenderingProgressEvents, not WKRenderingProgressEvents. The latter is deprecated and could be removed soon.
Created attachment 243774 [details] Use _WKRenderingProgressEvents
Attachment 243774 [details] did not pass style-queue: ERROR: Source/WebKit2/Shared/API/Cocoa/_WKRenderingProgressEvents.h:30: Place brace on its own line for function definitions. [whitespace/braces] [4] Total errors found: 1 in 8 files If any of these errors are false positives, please file a bug against check-webkit-style.
Fixed in <http://trac.webkit.org/r177760>.