Bug 729261 - Set private browsing attribute on windows that exist after transition into PB mode. r=ehsan

browser/components/privatebrowsing/src/nsPrivateBrowsingService.js

@@ -189,18 +189,6 @@ PrivateBrowsingService.prototype = {
         }
         win.close();
       }
-        
-      var windowsEnum = Services.wm.getEnumerator("navigator:browser");
-      while (windowsEnum.hasMoreElements()) {
-        var window = windowsEnum.getNext();
-        window.getInterface(Ci.nsIWebNavigation)
-              .QueryInterface(Ci.nsIDocShellTreeItem)
-              .treeOwner
-              .QueryInterface(Ci.nsIInterfaceRequestor)
-              .getInterface(Ci.nsIXULWindow)
-              .docShell.QueryInterface(Ci.nsILoadContext)
-              .usePrivateBrowsing = this._inPrivateBrowsing;
-      }
 
       if (!this._quitting && this._saveSession) {
         let browserWindow = this._getBrowserWindow();
@@ -229,6 +217,18 @@ PrivateBrowsingService.prototype = {
                        .getInterface(Ci.nsIXULWindow)
                        .docShell.contentViewer.resetCloseWindow();
         }
+
+        var windowsEnum = Services.wm.getEnumerator("navigator:browser");
+        while (windowsEnum.hasMoreElements()) {
+          var window = windowsEnum.getNext();
+          window.getInterface(Ci.nsIWebNavigation)
+                .QueryInterface(Ci.nsIDocShellTreeItem)
+                .treeOwner
+                .QueryInterface(Ci.nsIInterfaceRequestor)
+                .getInterface(Ci.nsIXULWindow)
+                .docShell.QueryInterface(Ci.nsILoadContext)
+                .usePrivateBrowsing = this._inPrivateBrowsing;
+        }
       }
     }
     else