fuchsia: base_unittests (mostly) compiling

Things that are compiled out of base at the moment (without replacements
implemented in this CL): message loop, process control, signal handling
in test runner, and backtraces, all of which will need to be implemented
in Fuchsia-specific ways in subsequent patches, rather than using the
Linux-y/Posix-y ways.

Two functions in trace_event are also stubbed for now, not for any good
reason, just because I'm not sure how to implement them yet, and this
gets things compiling.

BUG=706592

Review-Url: https://codereview.chromium.org/2884353004
Cr-Commit-Position: refs/heads/master@{#472983}


CrOS-Libchrome-Original-Commit: 6ea9ff3e27ed759a26158a6e71fd3d9ea7789aeb
10 files changed
tree: 65c91d67192ee73cf319cd77c5230951625dd7de
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/