Added new PMA test for truncated files.

I created this test while trying to reproduce a problem in the field.
Everything worked; no changes necessary to the main code.

Bug: 
Change-Id: I05ca47460a8a3f5cc6358de28bc553ad9d9bc15b
Reviewed-on: https://chromium-review.googlesource.com/702774
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Commit-Queue: Brian White <bcwhite@chromium.org>
Cr-Commit-Position: refs/heads/master@{#508069}

CrOS-Libchrome-Original-Commit: a7783d08aab4449122fe9997dc28c5c56e61388e
1 file changed
tree: 40750aa96de001e7a62ff386b9e2c7e5871ae097
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/