Bug 947798 (part 1) - Rename NS_MEMORY_REPORTER_MALLOC_SIZEOF_FUN as MOZ_DEFINE_MALLOC_SIZE_OF.  r=mccr8.

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extra : rebase_source : ec09d4c31264c15befb020375bf001a1ad1df6b8
Bug 947798 (part 2) - Remove MemoryMultiReporter, because it's no longer helpful.  r=mccr8.

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extra : rebase_source : f6f74de69d8c1d79d38b84b19dff5439efc41075