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ap@apple.com authored
https://bugs.webkit.org/show_bug.cgi?id=48576 Let WebKit2 client know when a frame is a frameset This can change in two cases, when document changes, and when frame is navigated to another document. git-svn-id: http://svn.webkit.org/repository/webkit/trunk@70894 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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