We've changed our way to set the `userGestureActivation` flag which will be set in `BrowsingContext`, so we should remove 'mUserGestureActivated' flag from Document.
Bug 1520912 Comment 0 Edit History
Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.
We've changed the way to set the `userGestureActivation` flag which will be set in `BrowsingContext`, so we should remove `mUserGestureActivated` flag from Document.