Primarily by shrinking enums, secondarily by moving a boolean to the end of the struct to minimize padding.
Created attachment 364099 [details] Patch
Comment on attachment 364099 [details] Patch Attachment 364099 [details] did not pass mac-wk2-ews (mac-wk2): Output: https://webkit-queues.webkit.org/results/11436622 New failing tests: accessibility/mac/selection-notification-focus-change.html
Created attachment 364120 [details] Archive of layout-test-results from ews105 for mac-highsierra-wk2 The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews. Bot: ews105 Port: mac-highsierra-wk2 Platform: Mac OS X 10.13.6
Comment on attachment 364099 [details] Patch Flaky test.
Comment on attachment 364099 [details] Patch Clearing flags on attachment: 364099 Committed r242718: <https://trac.webkit.org/changeset/242718>
All reviewed patches have been landed. Closing bug.
<rdar://problem/48773266>