tree 279fd9783acac0b6e8a90362ea64c59e8a22fa7e
parent 13a55bc43d9d5803aa2643dbb0507adb8ed87e32
author pkotwicz@chromium.org <pkotwicz@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> 1358189995 +0900
committer Qijiang Fan <fqj@google.com> 1591246526 +0900

Avoid sending notifications when the bitmap data in the history backend is replaced with bitmap data which is byte for byte equal.

Bug=168223
Test=HistoryBackendTest.*
     Manual: see comment #7 in bug

Review URL: https://chromiumcodereview.appspot.com/11830007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@176691 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 5565316246b58c1168fb10e9439fc903ebb8faa6