Bug 182053 [Automation][Regression] Visibility does not work properly in html and viewer
steps to reproduce: - create a report - add any report item - hide this report item in pdf - preview in html and viewer expected behavior: - this report item should be shown actual behavior: - this report item was not shown
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/emitter/ContentEmitterUtil.java
{
		public Object visit( IContent content, Object value )
		{
			return content.accept( this, value );
		}
		public Object visitContent( IContent content, Object value )
		{
			IContentEmitter emitter = (IContentEmitter) value;
			emitter.startContent( content );
			return value;
		}
		public Object visitPage( IPageContent page, Object value )
		{
			IContentEmitter emitter = (IContentEmitter) value;
			emitter.startPage( page );
			return value;
		}
		public Object visitContainer( IContainerContent container, Object value )
		{
			IContentEmitter emitter = (IContentEmitter) value;
			emitter.startContainer( container );
			return value;
		}
		public Object visitTable( ITableContent table, Object value )
		{