Reviewed by Brady.

        * plugins/open-and-close-window-with-plugin.html:
        Manage open windows manually for this test.

WebKitTools:

        Reviewed by Brady.

        By default, close any windows that have been opened during a test. This can be overridden by
        calling setCloseRemainingWindowsWhenComplete(false).
        
        Change the windows set to an array so we can gurantee the enumeration order.
        
        * DumpRenderTree/DumpRenderTree.m:
        (+[LayoutTestController isSelectorExcludedFromWebScript:]):
        (+[LayoutTestController webScriptNameForSelector:]):
        (-[LayoutTestController setCloseRemainingWindowsWhenComplete:]):
        (runTest):
        (-[DumpRenderTreeWindow initWithContentRect:styleMask:backing:defer:]):
        (-[DumpRenderTreeWindow dealloc]):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@20876 268f45cc-cd09-0410-ab3c-d52691b4dbfc