Tweak perl scripts in memwatcher tool area....

Tweak perl scripts in memwatcher tool area.

The results are now sorted before being output, so there is no need
to pass the results through a sort filter.

Byte counts are now printed with comma separators between groups of
3 digits, so that 1234567 is now output as 1,234,567.

The summary.pl now has a number of more precise matches to better 
give a quick estimate of blame for each allocation stack.


r=mbelshe

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=30673

[Mike Belshe, 2009-10-31 08:22:46]

lgtm