Enable SecurityTest.NewOverflow on Linux now that valgrind is gone

BUG=582398,690271

Review-Url: https://codereview.chromium.org/2694173005
Cr-Commit-Position: refs/heads/master@{#451787}


CrOS-Libchrome-Original-Commit: a71e1c4d8c9bb54716c7ee7f82ce6b99730bb1b7
1 file changed
tree: e539923e5e5cb52a12f0b4518c05be5b18ea8620
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/