Bug 65444 [R21PRES] Close button shown when views not closeable
RC1 build - run the browser example using the R2.1 presentation - the views have close buttons in the titlebar, but should not because the perspective has fixed="true" (meaning that all initial views are non-moveable and non-closeable)
bundles/org.eclipse.ui.presentations.r21/src/org/eclipse/ui/internal/presentations/R21BasicStackPresentation.java
updateGradient();
        }
    };
	private ToolBar viewToolBar;
	private ToolItem pullDownButton;
	private ToolItem closeButton;
	public R21BasicStackPresentation(R21PaneFolder control, IStackPresentationSite stackSite) {
	    super(stackSite);
		paneFolder = control;
		
				
		titleLabel = new CLabel(paneFolder.getControl(), SWT.SHADOW_NONE);
		titleLabel.setVisible(false);
		titleLabel.moveAbove(null);
		titleLabel.addMouseListener(titleMouseListener);
		titleLabel.addMouseListener(mouseListener);
		titleLabel.addListener(SWT.MenuDetect, menuListener);
		PresentationUtil.addDragListener(titleLabel, dragListener);
		
		
		
		viewToolBar = new ToolBar(control.getControl(), SWT.HORIZONTAL 
				| SWT.FLAT);
		viewToolBar.moveAbove(null);
		
		pullDownButton = new ToolItem(viewToolBar, SWT.PUSH);
		
		Image hoverImage =
			WorkbenchImages.getImage(IWorkbenchGraphicConstants.IMG_LCL_VIEW_MENU_HOVER);
		pullDownButton.setDisabledImage(null);