[BackgroundService] Show tooltip over `other domains` checkbox

Bug: 1048978
Change-Id: I9594b0110fc4cb07ffbc6c2156fd697a57fbf750
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2038700
Auto-Submit: Rayan Kanso <[email protected]>
Commit-Queue: Tim van der Lippe <[email protected]>
Reviewed-by: Tim van der Lippe <[email protected]>
diff --git a/front_end/resources/BackgroundServiceView.js b/front_end/resources/BackgroundServiceView.js
index 53e534f..765b286 100644
--- a/front_end/resources/BackgroundServiceView.js
+++ b/front_end/resources/BackgroundServiceView.js
@@ -117,8 +117,8 @@
 
     this._toolbar.appendSeparator();
 
-    this._originCheckbox =
-        new UI.ToolbarCheckbox(ls`Show events from other domains`, undefined, () => this._refreshView());
+    this._originCheckbox = new UI.ToolbarCheckbox(
+        ls`Show events from other domains`, ls`Show events from other domains`, () => this._refreshView());
     this._toolbar.appendToolbarItem(this._originCheckbox);
   }