[webkit-reviews] review requested: [Bug 159378] [Cocoa] Adopt modern API availability macros : [Attachment 282663] Add TARGET_OS_* guards

[bugzilla-daemon at webkit.org]

mitz at webkit.org <mitz at webkit.org> has asked  for review:
Bug 159378: [Cocoa] Adopt modern API availability macros
https://bugs.webkit.org/show_bug.cgi?id=159378

Attachment 282663: Add TARGET_OS_* guards

https://bugs.webkit.org/attachment.cgi?id=282663&action=review