When dumping pixels from a web view snapshot, we create a platform image that is then converted to a WKImage, which is a ShareableBitmap, so the image is rendered into a graphics context. Then we immediately extract the platform image back from the WKImage to dump the pixels. We could avoid that conversion by taking the web snapshot from TestInvocation::dumpPixelsAndCompareWithExpected().
Created attachment 306611 [details] Patch
Comment on attachment 306611 [details] Patch Attachment 306611 [details] did not pass ios-sim-ews (ios-simulator-wk2): Output: http://webkit-queues.webkit.org/results/3505055 Number of test failures exceeded the failure limit.
Created attachment 306615 [details] Archive of layout-test-results from ews124 for ios-simulator-wk2 The attached test failures were seen while running run-webkit-tests on the ios-sim-ews. Bot: ews124 Port: ios-simulator-wk2 Platform: Mac OS X 10.11.6
hmm, it seems the iOS changes are not correct, I'll try to figure out
Created attachment 306668 [details] Patch for landing I think the problem in iOS is that we were releasing CARenderServerBufferRef too early, so I've added a callback to CGDataProviderCreateWithData and moved the call to CARenderServerDestroyBuffer there.
Created attachment 306672 [details] Patch for landing
Comment on attachment 306672 [details] Patch for landing Clearing flags on attachment: 306672 Committed r215176: <http://trac.webkit.org/changeset/215176>
All reviewed patches have been landed. Closing bug.