[fuchsia] Re-enable disabled content unittests

Local runs showed no flake.

Bug: 776424
Change-Id: I0bd4bedcfe7ff8be85b8e84b6992efc7cbc36b8e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1592626
Auto-Submit: Fabrice de Gans-Riberi <fdegans@chromium.org>
Commit-Queue: Marc-Antoine Ruel <maruel@chromium.org>
Reviewed-by: Marc-Antoine Ruel <maruel@chromium.org>
Cr-Commit-Position: refs/heads/master@{#657224}
1 file changed