Bug 201675 [Automation][Smoke][Regression]Visibility does not work.
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/layout/html/buffer/DummyPageBuffer.java
public void startContainer( IContent content, boolean isFirst,
			IContentEmitter emitter, boolean visible )
	{
		if( !visible )
		{
			return;
		}
		if ( content.getContentType( ) == IContent.PAGE_CONTENT )
		{
			isFirstContent = true;
			pageContent = content;
			pageEmitter = emitter;
		}
		else
		{
			if ( isFirstContent )
			{
				startPageContent( content );
				isFirstContent = false;
			}
			if ( emitter != null )
			{
				ContentEmitterUtil.startContent( content, emitter );
			}
		}
	}
	
	public void startContent( IContent content, IContentEmitter emitter, boolean visible )
	{
		if( !visible )