Only run camera tests on devices with cameras

Changes tests that verify camera functionality to only run
on devices that have a camera

BUG=654515

Review-Url: https://codereview.chromium.org/2406973002
Cr-Commit-Position: refs/heads/master@{#424440}


CrOS-Libchrome-Original-Commit: fc878d9d24b71733165134bfd123995a120289e4
3 files changed
tree: 33099385928ab9ef6f0424c33a78d38ebaaf34b5
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/