Bug 1555222 - Show the protections panel when meta+clicking the identity box. r=johannh

Differential Revision: https://phabricator.services.mozilla.com/D32951

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

browser/base/content/browser-siteIdentity.js

@@ -868,10 +868,8 @@ var gIdentityHandler = {
    * Click handler for the identity-box element in primary chrome.
    */
   handleIdentityButtonEvent(event) {
-    // For Nightly users, show the WIP protections panel if the tracking
-    // protection icon was clicked.
-    if (this._protectionsPanelEnabled &&
-        event.originalTarget.id == "tracking-protection-icon-animatable-image") {
+    // For Nightly users, show the WIP protections panel if the meta key was held.
+    if (this._protectionsPanelEnabled && event.metaKey) {
       gProtectionsHandler.handleProtectionsButtonEvent(event);
       return;
     }

browser/base/content/browser-siteProtections.js

@@ -39,7 +39,7 @@ var gProtectionsHandler = {
     this.refreshProtectionsPopup();
 
     // Now open the popup, anchored off the primary chrome element
-    PanelMultiView.openPopup(this._protectionsPopup, this._protectionsIconBox, {
+    PanelMultiView.openPopup(this._protectionsPopup, gIdentityHandler._identityIcon, {
       position: "bottomcenter topleft",
       triggerEvent: event,
     }).catch(Cu.reportError);