When using content.requestIdleCallback(), the idle callback may not be run by the time the content goes away, resulting in a missed send. ChromeUtils.idleDispatch does not have this issue. MozReview-Commit-ID: DdGMr6j80sZ
When using content.requestIdleCallback(), the idle callback may not be run by the time the content goes away, resulting in a missed send. ChromeUtils.idleDispatch does not have this issue. MozReview-Commit-ID: DdGMr6j80sZ