GitLab

Use TaskService to run methods on dedicated threads, and
fix potential race condition on Finalize(). It could
cause system resource leaks that results in CoreMIDI
failing on the initialization eventually.

Bug: 694138
Change-Id: I4192e93d135f6ed8d550bdb9fecd5ff912eef7d2
Reviewed-on: https://chromium-review.googlesource.com/575794Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Commit-Queue: Takashi Toyoshima <toyoshim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#491004}