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/ViewerHTMLActionHandler.java
this.locale = locale;
		this.isEmbeddable = isEmbeddable;
		this.isRtl = isRtl;
		this.isMasterPageContent = isMasterPageContent;
	}
	/**
	 * Constructor. This is for runAndRender task.
	 * 
	 * @param locale
	 * @param isEmbeddable
	 * @param isRtl
	 * @param isMasterPageContent
	 */
	public ViewerHTMLActionHandler( Locale locale, boolean isRtl,
			boolean isMasterPageContent )
	{
		this.locale = locale;
		this.isRtl = isRtl;
		this.isMasterPageContent = isMasterPageContent;
	}
	/**
	 * Get URL
	 */
	public String getURL( IAction actionDefn, Object context )
	{
		if ( actionDefn == null )
		{
			return null;
		}
		switch ( actionDefn.getType( ) )