As a note, I submitted a Try with the change to add winmm.dll to the delayload list, and the test passed. https://treeherder.mozilla.org/#/jobs?repo=try&revision=76d75d8cf3c7eb738afb62ab6df053f639c5aaf1 (`browser_checkdllblockliststate.js` is run as a part of `bc4` in Windows 7 opt)
Bug 1557564 Comment 23 Edit History
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As a note, I submitted a Try with the change to add winmm.dll to the delayload list, and the test passed. https://treeherder.mozilla.org/#/jobs?repo=try&revision=76d75d8cf3c7eb738afb62ab6df053f639c5aaf1 (`browser_checkdllblockliststate.js` was run as a part of `bc4` in Windows 7 opt)