Bug 151202 [regression]Set default master page to item in cell will cause blank page
Description: Set default master page to item in cell will cause blank page Steps to reproduce: 1. New a report 2. Insert a grid(1*1) 3. Insert a label to grid cell 4. Select the label and set default master page to it 5. Preview in Web Viewer and pdf Expected result: No blank page, just one page for grid display. Actual result: A blank page before grid page
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFAbstractLM.java
{
	
	protected final static int STATUS_START = 0;
	protected final static int STATUS_INPROGRESS = 1;
	protected final static int STATUS_END = 3;
	protected int status = STATUS_START;
	protected static Logger logger = Logger.getLogger( PDFAbstractLM.class
			.getName( ) );
	protected PDFStackingLM parent;
	protected IContent content;
	protected PDFLayoutEngineContext context;
	protected IContentEmitter emitter;
	protected IReportItemExecutor executor;
	/**
	 * identify if current area is the first area generated by content
	 */
	protected boolean isFirst = true;
	/**
	 * identify if current area is the last area generated by content
	 */
	protected boolean isLast = false;
	protected int specifiedWidth = 0;
	protected int specifiedHeight = 0;
	public IContent getContent( )
	{
		return content;