code: public boolean isSecureLink(CmsObject cms, String vfsName, String siteRoot) {
  
          return isSecureLink(cms, vfsName, siteRoot, false);
      }
docs: Returns <code>true</code> if the given VFS resource that is located under the
  given site root should be transported through a secure channel.<p>
  
  @param cms the current users OpenCms context
  @param vfsName the VFS resource name to check
  @param siteRoot the site root where the the VFS resource should be read
  
  @return <code>true</code> if the given VFS resource should be transported through a secure channel
  
  @see #isSecureLink(CmsObject, String)