CONSOLE MESSAGE: RenderListBox: didAddVerticalScrollbar
CONSOLE MESSAGE: line 15: RenderListBox: mouseMovedInContentArea
CONSOLE MESSAGE: line 16: RenderListBox: mouseEnteredVerticalScrollbar
CONSOLE MESSAGE: line 16: RenderListBox: mouseMovedInContentArea
CONSOLE MESSAGE: line 17: RenderListBox: mouseIsDownInVerticalScrollbar
CONSOLE MESSAGE: line 18: RenderListBox: mouseIsUpInVerticalScrollbar
CONSOLE MESSAGE: line 18: RenderListBox: mouseMovedInContentArea
CONSOLE MESSAGE: line 19: RenderListBox: mouseExitedVerticalScrollbar
CONSOLE MESSAGE: line 19: RenderListBox: mouseExitedContentArea
PASS successfullyParsed is true

TEST COMPLETE
Test for https://bugs.webkit.org/show_bug.cgi?id=153398.