Fix field_trial deserialization unittest

Use a plausible file descriptor number instead of -1 for constructing
a shared memory handle in the serialization test.

The value doesn't really matter for the test since it doesn't actually
use the file descriptor, but using -1 broke a sanity check I'm adding
in a new CL that adds a new Android shared memory handle subtype. See

https: //crrev.com/c/680100 for context.
Bug: 
Change-Id: If16a7491e2f446d1a28af171fc4536aec540d755
Reviewed-on: https://chromium-review.googlesource.com/735534
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Commit-Queue: Klaus Weidner <klausw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#511739}

CrOS-Libchrome-Original-Commit: ec082c81353aa08ef66263e31a477b3c973d1ab8
1 file changed
tree: 13645a4afc1e63e31aa30d5f7b066e6d66d1ee78
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/