Bug 1530367 - Toggle audio playback when clicking on blocked media in pinned tabs. r=dao

This attribute  was overlooked previously when moving away from _overPlayingIcon.

Differential Revision: https://phabricator.services.mozilla.com/D21436

--HG--
extra : moz-landing-system : lando

browser/base/content/tabbrowser.xml

@@ -2429,7 +2429,8 @@
         if (event.originalTarget.classList.contains("tab-icon-sound") ||
             (event.originalTarget.classList.contains("tab-icon-overlay") &&
              (event.originalTarget.hasAttribute("soundplaying") ||
-              event.originalTarget.hasAttribute("muted")))) {
+              event.originalTarget.hasAttribute("muted") ||
+              event.originalTarget.hasAttribute("activemedia-blocked")))) {
           if (this.multiselected) {
             gBrowser.toggleMuteAudioOnMultiSelectedTabs(this);
           } else {