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/r21/widgets/R21PaneFolder.java
int delta = getTabHeight() + 1;
			tabFolderClientArea.height += delta;
			
			if (getTabPosition() == SWT.TOP) {
				tabFolderClientArea.y -= delta;
			}
		}
		
		viewForm.setBounds(tabFolderClientArea);
		viewFormTopRightProxy.layout();
		viewFormTopLeftProxy.layout();
		viewFormTopCenterProxy.layout();
	}
	
	/**
	 * Returns the client area for this PaneFolder, relative to the pane folder's control.
	 * 
	 * @return
	 */
	public Rectangle getClientArea() {
		Rectangle bounds = contentProxy.getControl().getBounds();
		
		Rectangle formArea = viewForm.getBounds();
		
		bounds.x += formArea.x;
		bounds.y += formArea.y;
		
		return bounds;