DM+nanobench: print both current and max RSS.

DM+nanobench: print both current and max RSS.

out/Debug/dm:
    ( 360/380 MB  2112) 396ms   gpu gm  xfermodes

out/Release/nanobench:
    32/33  MB 1659    2.46µs  2.55µs  2.54µs  2.67µs  2%  ▄▄▄▅▅▃▂▁▂█  gpu gradient_conicalZero_clamp_hicolor

out/Debug/nanobench:
    42/42  MB   desk_css3gradients.skp_1    8888

BUG=skia:

NOTREECHECKS=true

Committed: https://skia.googlesource.com/skia/+/d75c466ef57ef4dbdf96390b2c01121e4de36f23

[mtklein_C, 2015-04-30 14:06:54]

mtklein@chromium.org changed reviewers:
+ rmistry@google.com

[mtklein_C, 2015-04-30 14:06:54]

Can't hurt to have more memory information while we're looking at those sp SKPs.

[mtklein_C, 2015-04-30 14:06:59]

The CQ bit was checked by mtklein@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2015-04-30 14:07:12]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1115203002/1

[rmistry, 2015-04-30 14:09:34]

LGTM

[mtklein, 2015-04-30 14:10:50]

The CQ bit was unchecked by mtklein@google.com

[mtklein, 2015-04-30 14:10:55]

The CQ bit was checked by mtklein@google.com

[commit-bot: I haz the power, 2015-04-30 14:11:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1115203002/1

[commit-bot: I haz the power, 2015-04-30 14:11:27]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/d75c466ef57ef4dbdf96390b2c01121e4de36f23