In the new architecture of Quantum DOM, all timer callback need a
specified event target. So, we add the new document arg to Start
function to get the event target from it. And update all callers.
MozReview-Commit-ID: a482mukqGc
In the new architecture of Quantum DOM, all runnables need a name label.
So, we add the new string-label arg to Start function, and update all
callers.
MozReview-Commit-ID: G9LXFjtFcQv
This patch makes nsRepeatService stop inheriting from nsITimerCallback.
We needed that inheritance for InitWithCallback, but we do not need it
for InitWithFuncCallback.
This patch also makes nsRepeatService singly-owned instead of being
refcounted, since we're left with only a single owning pointer.
MozReview-Commit-ID: Fl8beVC8kGH
