Early-out when the PrivateWorkingSetSnapshot is being flaky
The Pdh APIs which PrivateWorkingSetSnapshot depends on are flaky and
sometimes (~5% of the time on many builders) give back a result of
zero. This is handled seamlessly in task manager by falling back to
the old calculations so it is not a critical failure. Checking for
zero case and skipping the test in that case stops flaky-test
failures.
R=grt@chromium.org,thakis@chromium.org
BUG=508531
Review URL: https://codereview.chromium.org/
1225103004
Cr-Commit-Position: refs/heads/master@{#338320}