[webkit-reviews] review requested: [Bug 54181] Implement Page Visibility API. : [Attachment 92523] Patch

[bugzilla-daemon at webkit.org]

Shishir Agrawal <shishir at chromium.org> has asked  for review:
Bug 54181: Implement Page Visibility API.
https://bugs.webkit.org/show_bug.cgi?id=54181

Attachment 92523: Patch
https://bugs.webkit.org/attachment.cgi?id=92523&action=review

------- Additional Comments from Shishir Agrawal <shishir at chromium.org>
Missed changelog files in last patch.