Bug 1392352 - Part 2 - Translate the tabbrowser implementation into a JS class;r=mconley,r=dao CLOSED TREE

We keep the XBL binding around for <content>, <constructor>, and <destructor>. This can
eventually be migrated to a Custom Element once we have platform support, but in the meantime
this is a way to get the many thousands of LOC into a JS class.

MozReview-Commit-ID: 1dCQp527yF9

browser/base/content/browser-fullScreenAndPointerLock.js

@@ -376,7 +376,7 @@ var FullScreen = {
         // request was initiated from an in-process browser, we need
         // to get its corresponding browser here.
         let browser;
-        if (event.target == gBrowser) {
+        if (event.target == gBrowser.container) {
           browser = event.originalTarget;
         } else {
           let topWin = event.target.ownerGlobal.top;