We should check element.style for grid-auto-flow property in fast/css-grid-layout/grid-auto-flow-get-set.html test. The test was modified in bug #134057 but element.style was not checked there.
Created attachment 234983 [details] Patch
JFTR, this has been already landed on Blink: https://codereview.chromium.org/360233002/
Comment on attachment 234983 [details] Patch I agree with the patch but now that I see the test I think it's time to creating something like testGridDefinitionsSetJSValues() but for grid auto flow. It'd be something like checkGridDefinitionsSetJSValues() but very simplified: { create node set style match result with expected result passed as argument remove node }
Created attachment 235060 [details] Patch Apply suggested changes.
Created attachment 235067 [details] Patch Replace checkGridAutoFlowCSSSetCSSValue by checkGridAutoFlowSetCSSValue.
Comment on attachment 235067 [details] Patch Go go go!
Comment on attachment 235067 [details] Patch Clearing flags on attachment: 235067 Committed r171183: <http://trac.webkit.org/changeset/171183>
All reviewed patches have been landed. Closing bug.