Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/device/DisplayAdapter.java
*/
	public Size getSize( Object oImage )
	{
		
		return null;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.device.IDisplayServer#getObserver()
	 */
	public Object getObserver( )
	{
		
		return null;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.device.IDisplayServer#getTextMetrics(org.eclipse.birt.chart.model.component.Label)
	 */
	public ITextMetrics getTextMetrics( Label la )
	{
		
		return null;
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.chart.device.IDisplayServer#getLocale()