[webkit-reviews] review requested: [Bug 147089] Media Session: add support for ducking media elements : [Attachment 257060] Patch

[bugzilla-daemon at webkit.org]

Matt Rajca <mrajca at apple.com> has asked  for review:
Bug 147089: Media Session: add support for ducking media elements
https://bugs.webkit.org/show_bug.cgi?id=147089

Attachment 257060: Patch

https://bugs.webkit.org/attachment.cgi?id=257060&action=review