Same as bug 172851, but for iOS and for frame flattening.
Created attachment 312965 [details] Patch
Comment on attachment 312965 [details] Patch Attachment 312965 [details] did not pass ios-sim-ews (ios-simulator-wk2): Output: http://webkit-queues.webkit.org/results/3934570 New failing tests: imported/w3c/web-platform-tests/html/browsers/browsing-the-web/history-traversal/persisted-user-state-restoration/scroll-restoration-fragment-scrolling-cross-origin.html fast/frames/frame-scrolling-attribute.html imported/w3c/web-platform-tests/html/browsers/browsing-the-web/history-traversal/persisted-user-state-restoration/scroll-restoration-navigation-cross-origin.html fast/text-autosizing/ios/contenteditable.html fast/frames/frameset-style-recalc.html compositing/iframes/iframe-copy-on-scroll.html fast/frames/take-focus-from-iframe.html tables/mozilla/bugs/bug131020.html compositing/iframes/iframe-in-composited-layer.html fast/scrolling/scrolling-tree-includes-frame.html fast/overflow/scrollRevealButton.html fast/frames/iframe-scrolling-attribute.html compositing/iframes/overlapped-iframe-iframe.html fast/regions/repaint/line-flow-with-floats-in-regions.html fast/forms/basic-textareas.html
Created attachment 312967 [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 10.12.5
Created attachment 312968 [details] Patch
Comment on attachment 312968 [details] Patch Attachment 312968 [details] did not pass ios-sim-ews (ios-simulator-wk2): Output: http://webkit-queues.webkit.org/results/3934943 New failing tests: imported/w3c/web-platform-tests/html/browsers/browsing-the-web/history-traversal/persisted-user-state-restoration/scroll-restoration-fragment-scrolling-cross-origin.html fast/frames/frameset-style-recalc.html imported/w3c/web-platform-tests/html/browsers/browsing-the-web/history-traversal/persisted-user-state-restoration/scroll-restoration-navigation-cross-origin.html fast/text-autosizing/ios/contenteditable.html fast/frames/frame-scrolling-attribute.html compositing/iframes/iframe-copy-on-scroll.html fast/frames/take-focus-from-iframe.html tables/mozilla/bugs/bug131020.html compositing/iframes/iframe-in-composited-layer.html fast/overflow/scrollRevealButton.html fast/frames/iframe-scrolling-attribute.html compositing/iframes/overlapped-iframe-iframe.html fast/regions/repaint/line-flow-with-floats-in-regions.html fast/forms/basic-textareas.html
Created attachment 312970 [details] Archive of layout-test-results from ews125 for ios-simulator-wk2 The attached test failures were seen while running run-webkit-tests on the ios-sim-ews. Bot: ews125 Port: ios-simulator-wk2 Platform: Mac OS X 10.12.5
Created attachment 312976 [details] alternative Patch
Created attachment 312980 [details] Patch
As I see, some frames are already be included in the scrolling tree after bug 133665. So I guess I should come back to the initial idea of making this for all frames when frame flattening is disabled.
Comment on attachment 312980 [details] Patch Cancelling review per Simon's comments on IRC.
Created attachment 313286 [details] Patch (173359+173405)
Created attachment 313293 [details] Patch This patch applies on top of bug 173359.
Committed r218535: <http://trac.webkit.org/changeset/218535>