Bug 315181 [Automation][Regression]Grid border was messed in PDF
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/nLayout/area/impl/TableLayout.java
* the relevant position with dummy cell or empty cell. 3) Updates the
	 * height of the row and the cells in the row.
	 * 
	 * @param rowArea
	 *            current rowArea.
	 */
	private void updateRow( RowArea rowArea, boolean isFixedLayout )
	{
		RowArea lastRow = (RowArea) rows.getCurrent( );
		currentRow = rowArea;
		boolean usedResolvedRow= false;
		int height = rowArea.getSpecifiedHeight( );
		if ( !isFixedLayout || height==0)
		{
			for ( int i = startCol; i <= endCol; i++ )
			{
				CellArea upperCell = null;
				if ( lastRow != null )
				{
					upperCell = lastRow.getCell( i );
				}
				
				if ( upperCell != null && ( upperCell.getRowSpan( ) > 1 ) )
				{
					if(rowArea.cells[i]!=null)
					{
						rowArea.removeChild( rowArea.cells[i] );
					}
					DummyCell dummyCell = createDummyCell( upperCell );
					rowArea.setCell( dummyCell );