Bug 85452 [IDE] (regression) Backdrop missing when all perspectives closed
I20050215-2300 - close all perspectives - the main page is blank - it should have a backdrop with text and button explaining how to open a perspective
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/IDEWorkbenchAdvisor.java
break;
            }
        }
        if (newUpdates) {
            try {
                SiteManager.handleNewChanges();
            } catch (CoreException e) {
                IDEWorkbenchPlugin.log(
                        "Problem opening update manager", e.getStatus()); 
            }
        }
    }
    /* (non-Javadoc)
     * @see org.eclipse.ui.application.WorkbenchAdvisor#getDefaultPageInput
     */
    public IAdaptable getDefaultPageInput() {
        return ResourcesPlugin.getWorkspace().getRoot();
    }
    /* (non-Javadoc)
     * @see org.eclipse.ui.application.WorkbenchAdvisor
     */
    public String getInitialWindowPerspectiveId() {
        int index = PlatformUI.getWorkbench().getWorkbenchWindowCount() - 1;
        String perspectiveId = null;
        AboutInfo[] welcomeInfos = getWelcomePerspectiveInfos();
        if (index >= 0 && welcomeInfos != null
                && index < welcomeInfos.length) {
            perspectiveId = welcomeInfos[index].getWelcomePerspectiveId();
        }
        if (perspectiveId == null) {