Collect screenshot on failure

Convert previous collector since not really useful in its
old form.

Test: unit tests
Bug: 120941188
Change-Id: I887695fad5d8b2a6de728ad93e024ed99e7ba9b5
5 files changed
tree: 0f75a0dff98b4e09632e26f38f9f9272c7096765
  1. build/
  2. docs/
  3. libraries/
  4. scripts/
  5. tests/
  6. utils/
  7. PREUPLOAD.cfg