Bug 913260 (part 2) - Tweak ghost window reporters.  r=mccr8.
Bug 913260 (part 3) - Formalize the concept of "distinguished amounts" in the memory reporter manager.  r=mccr8.
Bug 913260 (part 4) - Use distinguished amounts for all the memory measurements done by telemetry.  r=mccr8.
CLOSED TREE