Bug 193231 RCP designer does not display Preview tab and View menu.
On RCP designer, Preview tab is missing and View Report menus. Please check the attached screen shot for detail.
viewer/org.eclipse.birt.report.viewer/src/org/eclipse/birt/report/viewer/utilities/WebViewer.java
root = createURL(
					allowPage ? "frameset" : "run", report, format, true, null, null ) + "&" + new Random( ).nextInt( ); 
		}
		try
		{
			startWebApp( );
			BrowserAccessor.getPreviewBrowser( false ).displayURL( root );
		}
		catch ( Exception e )
		{
			
		}
	}
	/**
	 * Displays the specified url useing eclipse SWT browser.
	 * 
	 * @param report
	 *            report report
	 * @param format
	 *            report format
	 * @param browser
	 *            SWT browser instance
	 * @deprecated
	 */
	public static void display( String report, String format, Browser browser )
	{
		startWebApp( );
		browser
				.setUrl( createURL( "run", report, format, true, null, null ) + "&" + new Random( ).nextInt( ) ); 
	}