commit 042aa75c9a8948b2c7793360b520c059105fff50
author groby@chromium.org <groby@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> Sun Aug 25 00:00:33 2013 +0900
committer Qijiang Fan <fqj@google.com> Thu Jun 04 15:08:16 2020 +0900
tree 4b296a6f2c2397d30faad4b2f3e11db0433dde78
parent 61cbab13ae0f38f23ffd9c2d8cc437ed78a68c20

Add a BarrierClosure.

Chromium frequently needs to execute a "final" closure once a given
number of other callbacks have run. BarrierClosure encapsulates that
logic while staying as light-weight as possible.

TBR=gbillock@chromium.org, willchan@chromium.org
BUG=none

Review URL: https://chromiumcodereview.appspot.com/22859056

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@219446 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 285d06fced9e6778985c50778327d64f29300174