Bug 1067664, part 1 - Allow different leak thresholds for different types of processes. r=jmaher
Bug 1067664, part 2 - Stop ignoring tab process leaks. r=jmaher
Bug 1068276, part 1 - Allow configuring which type of processes we complain about when there's no leak log. r=jmaher

Then don't warn for missing logs from tab and geckomediaplugin processes, or default processes on B2G.
Bug 1068276, part 2 - Make unexpected failure to produce a leak log an error. r=jmaher