Tiled layers are sometimes left with some tiles when outside the viewport
Created attachment 301128 [details] Patch
Comment on attachment 301128 [details] Patch Attachment 301128 [details] did not pass ios-sim-ews (ios-simulator-wk2): Output: http://webkit-queues.webkit.org/results/3061376 New failing tests: compositing/masks/solid-color-masked.html fast/scrolling/ios/scrollTo-at-page-load.html
Created attachment 301149 [details] Archive of layout-test-results from ews126 for ios-simulator-wk2 The attached test failures were seen while running run-webkit-tests on the ios-sim-ews. Bot: ews126 Port: ios-simulator-wk2 Platform: Mac OS X 10.11.6
<rdar://problem/30467109>
rdar://problem/30459055
https://trac.webkit.org/r212152