Bug 208194 [Automation] [Regression] Blank page is shown when export report as PDF fitting to page width or whole page [1200]
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/emitter/PageDeviceRender.java
* This method will be invoked while a containerArea ends.
	 * 
	 * @param container
	 *            the ContainerArea specified from layout
	 */
	protected void endContainer( IContainerArea container )
	{
		if ( container instanceof PageArea )
		{
			pageGraphic.dispose( );
		}
		else
		{
			if ( container.needClip( ) )
			{
				pageGraphic.clipRestore( );
			}
		}
		currentX -= container.getX( );
		currentY -= container.getY( );
	}
	/**
	 * Creates a new PDF page
	 * 
	 * @param page
	 *            the PageArea specified from layout
	 */
	protected void newPage( IContainerArea page )
	{
		pageHeight = getHeight( page );