1325254 P1 Make TimerThread::mTimers store RefPtr<nsTimerImpl> objects.
1325254 P2 Make TimerThread list store an entry struct and just drop nsTimerImpl ref on cancel.
1325254 P3 Sort TimerThread list as a binary heap.
1325254 P4 Dynamically allocate Entry structs stored in TimerThread::mTimers.
1325254 P5 Make nsITimer::Cancel() O(c).
Prepare for handling several sources of idleness.
Make idle callbacks aware of nsITimers.
Add pref for how far into the timer queue.
1311425 - Avoid expiration timers when scheduling idle runnables.
review comment fix to ensure low priority timers aren't taken into account when calling NS_GetTimerDeadlineHintOnCurrentThread.
Since these are just interpreted comments, there's 0 impact on actual code.
This removes all lines that match /* vim: set(.*)tw=80: */ with S&R -- there are
a few others scattered around which will be removed manually in a second part.
