Deprecate WebKitNavigationPolicyDecision:frame-name and add webkit_navigation_action_get_frame_name().
Pull request: https://github.com/WebKit/WebKit/pull/9438
Committed 259743@main (cc4c59bbd81e): <https://commits.webkit.org/259743@main> Reviewed commits have been landed. Closing PR #9438 and removing active labels.