The manifest's orientation member is a string that serves as the default screen orientation for all top-level browsing contexts of the web application. The possible values are those of the OrientationLockType enum, which in this specification are referred to as the orientation values (i.e., "any", "natural", "landscape", "portrait", "portrait-primary", "portrait-secondary", "landscape-primary", or "landscape-secondary"). Spec: https://www.w3.org/TR/appmanifest/#orientation-member
<rdar://problem/101770484>
Pull request: https://github.com/WebKit/WebKit/pull/5971
Pull request: https://github.com/WebKit/WebKit/pull/11636
Pull request: https://github.com/WebKit/WebKit/pull/11986
Committed 262241@main (f3713b339917): <https://commits.webkit.org/262241@main> Reviewed commits have been landed. Closing PR #11986 and removing active labels.