GitLab

HasPendingActivity() is called during garbage collection which may
happen during constructing an AudioNode. Since the handler has not been
set at this point we need to guard against derefencing null.

Bug: 937208
Change-Id: I4ee92d08c97f044aca8043443f04d751428e8455
Reviewed-on: https://chromium-review.googlesource.com/c/1495977Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#636776}