commit 0fc41528a3ebe689d89e9958547d87696ffd7dda
author joi@chromium.org <joi@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> Tue Nov 13 00:29:20 2012 +0900
committer Qijiang Fan <fqj@google.com> Thu Jun 04 13:39:16 2020 +0900
tree f7c1297fff75e36a084937ff1c22f9d09a2a4997
parent 54b1eec4926c6aeeb7aba5dceaa6d437166455f3

Reland: Closure-based API to PrefChangeObserver and PrefMember.

The original was in http://codereview.chromium.org/11368098/ (landed
as r166670) but seemed to increase memory usage significantly.

This version does away with storing the pref name in callbacks, which
should reduce memory usage.

TBR=ben@chromium.org,finnur@chromium.org
BUG=155525, 160177

Review URL: https://chromiumcodereview.appspot.com/11369153

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@167179 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 54ffd94accce938694d0aab9aff214d6686d9427