Move safe_strerror to posix directory and the base namespace.

Since this is a wrapper around a posix thing that doesn't fall under any other categories, the posix directory is probably the best place.

Review URL: https://codereview.chromium.org/1160373004

Cr-Commit-Position: refs/heads/master@{#333524}


CrOS-Libchrome-Original-Commit: 6ee6fd6efabf8b87324d0b233ea2332c4a0e1642
7 files changed
tree: a7e3084b391c3166438bfe8a05a11b5aad60957a
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/