The ATK 2.8.0 version is required for layout tests to work properly. https://bugs.webkit.org/show_bug.cgi?id=98376#c6 The at-spi2-atk and at-spi2-core versions should be bumped accordingly as there are currently crashes occurring on the GTK builders in libatk-bridge.so (provided by at-spi2-atk) that can most likely be attributed due to the builders having ATK 2.8 installed system-wide yet only using 2.5.3 versions of at-spi2-atk and at-spi2-core.
Created attachment 196383 [details] Patch
Comment on attachment 196383 [details] Patch Thanks!
Thanks for the review. The crashes are not occurring locally, hopefully the builders will get fixed as well.
Committed r147574: <http://trac.webkit.org/changeset/147574>