Kershaw Chang 6d782a5e1e Bug 1546185 - Also check mEventDispatchingSuspended to see if we are in sync event loop r=baku ... Only useing `mFlagSyncLooping` to check if the current code is in sync event loop is not enough. The crashtest in this patch shows that `mFlagSyncLooping` is set to false in OnStopReequets while we are still in sync event loop. `mEventDispatchingSuspended` is set to true right before calling `SpinEventLoopUntil` and set to false after, so we should also use it to check if `SpinEventLoopUntil` is finished. Differential Revision: https://phabricator.services.mozilla.com/D47240 --HG-- extra : moz-landing-system : lando		2019-10-01 11:31:43 +00:00
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