Bug 212238 [Regression] Pagebreak on chart does not work when preview in PDF/PPT/PostScritp.
Description: Pagebreak on chart does not work when preview in PDF/PPT/PostScritp. build version: 2.3.0 v20071207-0800. steps to reproduce: 1. New a report. 2. Insert a label in layout. 3. Insert a chart in layout. 4. Add pagebreak: Before Always on chart. 5. Preview in PDF/PPT/Postscript. Expected result: The chart should be displayed on the second page. Actual result: The chart is displayed on the first page.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/pdf/PDFAbstractLM.java
}
	protected void removeBorder( IStyle style )
	{
		if ( style != null )
		{
			style.setProperty( IStyle.STYLE_BORDER_LEFT_WIDTH, IStyle.NUMBER_0 );
			style.setProperty( IStyle.STYLE_BORDER_RIGHT_WIDTH, IStyle.NUMBER_0 );
			style.setProperty( IStyle.STYLE_BORDER_TOP_WIDTH, IStyle.NUMBER_0 );
			style.setProperty( IStyle.STYLE_BORDER_BOTTOM_WIDTH, IStyle.NUMBER_0 );
		}
	}
	protected void removeMargin( IStyle style )
	{
		if ( style != null )
		{
			style.setProperty( IStyle.STYLE_MARGIN_LEFT, IStyle.NUMBER_0 );
			style.setProperty( IStyle.STYLE_MARGIN_RIGHT, IStyle.NUMBER_0 );
			style.setProperty( IStyle.STYLE_MARGIN_TOP, IStyle.NUMBER_0 );
			style.setProperty( IStyle.STYLE_MARGIN_BOTTOM, IStyle.NUMBER_0 );
		}
	}
	protected boolean isHidden( )
	{
		if ( content != null )
		{
			IStyle style = content.getComputedStyle( );
			boolean outputDisplayNone = context.getOutputDisplayNone( );
			if ( !outputDisplayNone
					&& IStyle.NONE_VALUE.equals( style
							.getProperty( IStyle.STYLE_DISPLAY ) ) )