Bug 150601 Drillthrough link from pdf(frameset) should link to frameset servlet instead of run.
Description: Drillthrough link from pdf(frameset) should link to frameset servlet instead of run. Steps to reproduce: 1. New a report 2. Insert a label and define a drill through link to other report 3. Preview in Web viewer, click Print as PDF button in viewer toolbar 4. Click drill through link in pdf Expected result: Target report opens through frameset sevlet instead of run servlet. Because the pdf is displayed through frameset servlet. Actual result: Target report opened through run sevlet
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
boolean rtl ) throws RemoteException
	{
		assert reportDocument != null;
		assert pageNumber > 0 && pageNumber <= reportDocument.getPageCount( );
		OutputStream out = os;
		if ( out == null )
			out = new ByteArrayOutputStream( );
		
		IRenderTask renderTask = null;
		synchronized ( this.getClass( ) )
		{
			renderTask = engine.createRenderTask( reportDocument );
		}
		HashMap context = new HashMap( );
		String format = ParameterAccessor.getFormat( request );
		if ( format.equalsIgnoreCase( ParameterAccessor.PARAM_FORMAT_PDF ) )
		{
			context.put( EngineConstants.APPCONTEXT_PDF_RENDER_CONTEXT,
					createPDFrenderContext( ) );
		}
		else
		{
			context
					.put( EngineConstants.APPCONTEXT_HTML_RENDER_CONTEXT,
							createHTMLrenderContext( svgFlag, request
									.getServletPath( ) ) );
		}
		context.put( EngineConstants.APPCONTEXT_BIRT_VIEWER_HTTPSERVET_REQUEST,
				request );
		context.put( EngineConstants.APPCONTEXT_CLASSLOADER_KEY,