Land
http://codereview.chromium.org/6869009 for the third time.
Introduce the ANNOTATE_LEAKING_OBJECT_PTR annotation that can be used to mark
heap allocated objects as intentionally leaked ones.
Annotate the histograms produced by {Histogram,BooleanHistogram,LinearHistogram,CustomHistogram}::FactoryGet(), as leaked.
Rename StatsHistogram::StatsHistogramFactoryGet to StatsHistogram::FactoryGet, annotate the result as leaky, update the suppressions.
BUG=
79322
TBR=jar,willchan
Committed:
http://src.chromium.org/viewvc/chrome?view=rev&revision=86794