[webkit-reviews] review requested: [Bug 207622] MediaSource.isTypeSupported() says "video/mp4; codecs=\"avc3.42C015\"" is not supported, but it is : [Attachment 391071] Fix layout test failures on the Mac debug build

[bugzilla-daemon at webkit.org]

Peng Liu <peng.liu6 at apple.com> has asked  for review:
Bug 207622: MediaSource.isTypeSupported() says
"video/mp4;codecs=\"avc3.42C015\"" is not supported, but it is
https://bugs.webkit.org/show_bug.cgi?id=207622

Attachment 391071: Fix layout test failures on the Mac debug build

https://bugs.webkit.org/attachment.cgi?id=391071&action=review