commit 96074fa37c50405bb055408ea7753159eb9c3e50
author Daniel Erat <derat@google.com> Tue Jul 07 09:04:41 2015 -0600
committer Daniel Erat <derat@google.com> Thu Jul 09 08:44:15 2015 -0600
tree 283cc025142d106901e9b3e1a713433fd3b9af4e
parent 7c272d64bd2d746d9de3cfed342a6308ed18e0be

Add missing virtual destructors.

Update the following classes:

  base::FileTracing::Provider
  base::internal::PostTaskAndReplyImpl
  base::PostTaskAndReplyWorkerPool
  base::TraceLog::EnabledStateObserver

Also remove -Wnon-virtual-dtor.

This is avakulenko@chromium.org's
base-334380-file-tracing-provider-virt-dtor.patch from
Chrome OS with a few more classes added. The original commit
was https://chromium-review.googlesource.com/278013.

Bug: 22317122
Change-Id: Ib7e68ed5b92867ad07128ad9279d059a0eb25864