Bug 168305 IsHostPage doesn't work for birt:report tag.[0603]
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/taglib/ReportTag.java
{
		if ( viewer == null )
			return null;
		IViewerReportDesignHandle design = null;
		IReportRunnable reportRunnable = null;
		
		String designFile = createAbsolutePath( viewer.getReportDesign( ) );
		String documentFile = createAbsolutePath( viewer.getReportDocument( ) );
		HttpServletRequest request = (HttpServletRequest) pageContext
				.getRequest( );
		
		boolean isValidDocument = ParameterAccessor
				.isValidFilePath( documentFile );
		if ( documentFile != null && isValidDocument )
		{
			
			IReportDocument reportDocumentInstance = ReportEngineService
					.getInstance( ).openReportDocument( designFile,
							documentFile, getModuleOptions( ) );
			if ( reportDocumentInstance != null )
			{
				this.documentInUrl = true;
				reportRunnable = reportDocumentInstance.getReportRunnable( );
				reportDocumentInstance.close( );
			}
		}
		
		if ( reportRunnable == null )
		{