Stop setting is_posix for Fuchsia.

This sets is_posix to false for the Fuchsia build as it will rely less
and less on the POSIX implementation. Follow-up CLs will clean up build
files from redundant checks and stop including _posix files by default.

Bug: 812974
Change-Id: I6dc625ba2d4919a775041b1516e051b471c50e97
Reviewed-on: https://chromium-review.googlesource.com/987377
Commit-Queue: Fabrice de Gans-Riberi <fdegans@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Nasko Oskov <nasko@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Ken Rockot <rockot@chromium.org>
Reviewed-by: Chrome Cunningham <chcunningham@chromium.org>
Reviewed-by: Sergey Ulanov <sergeyu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#550292}

CrOS-Libchrome-Original-Commit: 9fba3affd0a3246f2ec851c5f83cc3588a379086
1 file changed
tree: 7d72894c8947950a1b7318f100744d61c667b89a
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/