Bug 141482 [Smoke][Regression]Style didn't take effect in Web Viewer and PDF
Steps to reproduce: 1.New a report, add a label 2.New a style, set background color to red 3.Apply style on label 4.Preview in Web Viewer and PDF Expected result: Background color of label is red Actual result: Style didn't take effect in Viewer and PDF
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/content/impl/AbstractContent.java
{
		this.hyperlink = hyperlink;
	}
	/**
	 * @param name
	 *            The name to set.
	 */
	public void setName( String name )
	{
		this.name = name;
	}
	public void setStyleClass( String name )
	{
		this.styleClass = name;
		this.style = null;
		this.computedStyle = null;
	}
	public String getStyleClass( )
	{
		if ( styleClass != null )
		{
			return styleClass;
		}
		if ( generateBy instanceof ReportItemDesign )
		{
			return ( (ReportItemDesign) generateBy ).getStyleName( );
		}
		return null;
	}
	/**