Use TimeTicks instead of gettimeofday in ProcessMetrics.

No real behavior change, but if the user changes their system time there
shouldn't be a jump in %cpu for one call.

BUG=none

Review URL: https://codereview.chromium.org/139103007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@262059 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: e21c33248f3bc1c048fe2e12d452f63d90a03e57
2 files changed
tree: dcb7967081e8c467397a11c53ee1bb0ef1fa7c12
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/