The fill-mode property is not parsed in the shorthand. Let's hope we don't have a clash with "none".
Created attachment 50146 [details] Patch for shorthand and new test file
Committing to http://svn.webkit.org/repository/webkit/trunk ... M LayoutTests/ChangeLog A LayoutTests/animations/animation-shorthand-expected.txt A LayoutTests/animations/animation-shorthand.html M WebCore/ChangeLog M WebCore/css/CSSParser.cpp Committed r55605