We shouldn't need to compute previous renderer, we should know it already.
Created attachment 324551 [details] patch
Comment on attachment 324551 [details] patch Attachment 324551 [details] did not pass mac-ews (mac): Output: http://webkit-queues.webkit.org/results/4958163 New failing tests: fast/block/float/float-not-removed-from-pre-block.html fast/css-generated-content/details-summary-before-after.html
Created attachment 324552 [details] Archive of layout-test-results from ews103 for mac-elcapitan The attached test failures were seen while running run-webkit-tests on the mac-ews. Bot: ews103 Port: mac-elcapitan Platform: Mac OS X 10.11.6
Comment on attachment 324551 [details] patch Attachment 324551 [details] did not pass mac-wk2-ews (mac-wk2): Output: http://webkit-queues.webkit.org/results/4958171 New failing tests: fast/block/float/float-not-removed-from-pre-block.html fast/css-generated-content/details-summary-before-after.html
Created attachment 324553 [details] Archive of layout-test-results from ews105 for mac-elcapitan-wk2 The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews. Bot: ews105 Port: mac-elcapitan-wk2 Platform: Mac OS X 10.11.6
Comment on attachment 324551 [details] patch Attachment 324551 [details] did not pass mac-debug-ews (mac): Output: http://webkit-queues.webkit.org/results/4958176 New failing tests: fast/block/float/float-not-removed-from-pre-block.html fast/css-generated-content/details-summary-before-after.html
Created attachment 324554 [details] Archive of layout-test-results from ews114 for mac-elcapitan The attached test failures were seen while running run-webkit-tests on the mac-debug-ews. Bot: ews114 Port: mac-elcapitan Platform: Mac OS X 10.11.6
Comment on attachment 324551 [details] patch Attachment 324551 [details] did not pass ios-sim-ews (ios-simulator-wk2): Output: http://webkit-queues.webkit.org/results/4958200 New failing tests: fast/block/float/float-not-removed-from-pre-block.html
Created attachment 324555 [details] Archive of layout-test-results from ews122 for ios-simulator-wk2 The attached test failures were seen while running run-webkit-tests on the ios-sim-ews. Bot: ews122 Port: ios-simulator-wk2 Platform: Mac OS X 10.12.6
Created attachment 324559 [details] patch
Comment on attachment 324559 [details] patch Clearing flags on attachment: 324559 Committed r223848: <https://trac.webkit.org/changeset/223848>
All reviewed patches have been landed. Closing bug.
<rdar://problem/35568826>