Frontend/popup proxy message refactoring (#520)

* Use direct message handler functions

* Remove unused targetPopupId

* Make target a member of FrontendApiSender

* Rename frameId to parentFrameId for clarity

* Remove _parentFrameId

* Rename _parentId to _parentPopupId for clarity

1 files changed, 2 insertions, 2 deletions

diff --git a/ext/fg/js/content-script-main.js b/ext/fg/js/content-script-main.js
index 3afc9648..57386b85 100644
--- a/ext/fg/js/content-script-main.js
+++ b/ext/fg/js/content-script-main.js
@@ -37,11 +37,11 @@ async function createIframePopupProxy(frameOffsetForwarder, setDisabled) {
         }
     );
     apiBroadcastTab('rootPopupRequestInformationBroadcast');
-    const {popupId, frameId} = await rootPopupInformationPromise;
+    const {popupId, frameId: parentFrameId} = await rootPopupInformationPromise;
 
     const getFrameOffset = frameOffsetForwarder.getOffset.bind(frameOffsetForwarder);
 
-    const popup = new PopupProxy(popupId, 0, null, frameId, getFrameOffset, setDisabled);
+    const popup = new PopupProxy(popupId, 0, null, parentFrameId, getFrameOffset, setDisabled);
     await popup.prepare();
 
     return popup;