asadiqbal08/SOL-1046: Convert LinkedIn anchor tag to button

* remove the onclick event
* add mako check to Javascript handler

common/test/acceptance/pages/lms/certificate_page.py

@@ -49,7 +49,7 @@ class CertificatePage(PageObject):
         """
         returns add to LinkedIn profile button
         """
-        return self.q(css='a.action-linkedin-profile')
+        return self.q(css='button.action-linkedin-profile')
 
     @property
     def add_to_facebook_profile_button(self):

lms/templates/certificates/_accomplishment-banner.html

@@ -30,6 +30,9 @@ from django.core.urlresolvers import reverse
                   social_network: 'LinkedIn'
               };
               Logger.log('edx.certificate.shared', data);
+              % if linked_in_url:
+              window.open('${linked_in_url}');
+              % endif
           });
       });
 
@@ -85,10 +88,10 @@ from django.core.urlresolvers import reverse
                     %endif
 
                     %if linked_in_url:
-                    <a class="action action-linkedin-profile btn btn-overlay btn-small icon-only" id="action-share-linkedin" target="_blank" href="${linked_in_url}" title="${_('Add to LinkedIn Profile')}" data-course-id="${course_id}" data-certificate-mode="${course_mode}">
+                    <button class="action action-linkedin-profile btn btn-overlay btn-small icon-only" id="action-share-linkedin" title="${_('Add to LinkedIn Profile')}" data-course-id="${course_id}" data-certificate-mode="${course_mode}">
                         <i class="icon fa fa-linkedin" aria-hidden="true"></i>
                         <span class="action-label">${_("Add to LinkedIn Profile")}</span>
-                    </a>
+                    </button>
                     %endif
 
                     %if badge: