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
* @param reportStream -
	 *            the input stream
	 * @return IReportRunnable
	 * @throws EngineException
	 */
	synchronized public IReportRunnable openReportDesign(
			InputStream reportStream ) throws EngineException
	{
		return engine.openReportDesign( reportStream );
	}
	/**
	 * createGetParameterDefinitionTask.
	 * 
	 * @param runnable
	 * @return the get parameter definition task
	 */
	public IGetParameterDefinitionTask createGetParameterDefinitionTask(
			IReportRunnable runnable )
	{
		IGetParameterDefinitionTask task = null;
		try
		{
			synchronized ( this.getClass( ) )
			{
				task = engine.createGetParameterDefinitionTask( runnable );
			}
		}
		catch ( Exception e )
		{
		}