Oilpan: Don't reset heap counters in a snapshot GC
Oilpan: Don't reset heap counters in a snapshot GC

The snapshot GC is expected to have no side effect.
It shouldn't reset the heap counters before starting a GC.

BUG=490087

Review URL: https://codereview.chromium.org/1188993004

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@197483 bbb929c8-8fbe-4397-9dbb-9b2b20218538

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk