diff --git a/filenames.gni b/filenames.gni
index b01a65746b..128480e6b3 100644
--- a/filenames.gni
+++ b/filenames.gni
@@ -70,7 +70,6 @@ filenames = {
     "lib/renderer/inspector.js",
     "lib/renderer/ipc-renderer-internal.js",
     "lib/renderer/remote.js",
-    "lib/renderer/override.js",
     "lib/renderer/security-warnings.js",
     "lib/renderer/web-frame-init.js",
     "lib/renderer/window-setup.js",
diff --git a/lib/browser/rpc-server.js b/lib/browser/rpc-server.js
index db2afa4227..e0249cff76 100644
--- a/lib/browser/rpc-server.js
+++ b/lib/browser/rpc-server.js
@@ -138,7 +138,7 @@ const plainObjectToMeta = function (obj) {
 }
 
 // Convert Error into meta data.
-const exceptionToMeta = function (sender, contextId, error) {
+const exceptionToMeta = function (error) {
   return {
     type: 'exception',
     value: errorUtils.serialize(error)
@@ -275,7 +275,7 @@ const handleRemoteCommand = function (channel, handler) {
     try {
       returnValue = handler(event, contextId, ...args)
     } catch (error) {
-      returnValue = exceptionToMeta(event.sender, contextId, error)
+      returnValue = exceptionToMeta(error)
     }
 
     if (returnValue !== undefined) {
diff --git a/lib/renderer/api/remote.js b/lib/renderer/api/remote.js
index 036ebd8c36..98fc55ca7a 100644
--- a/lib/renderer/api/remote.js
+++ b/lib/renderer/api/remote.js
@@ -311,7 +311,9 @@ exports.getCurrentWindow = () => {
 
 // Get current WebContents object.
 exports.getCurrentWebContents = () => {
-  return metaToValue(ipcRenderer.sendSync('ELECTRON_BROWSER_CURRENT_WEB_CONTENTS', contextId))
+  const command = 'ELECTRON_BROWSER_CURRENT_WEB_CONTENTS'
+  const meta = ipcRenderer.sendSync(command, contextId)
+  return metaToValue(meta)
 }
 
 // Get a global object in browser.
diff --git a/lib/renderer/init.js b/lib/renderer/init.js
index c65c6066b7..11dc73a9e8 100644
--- a/lib/renderer/init.js
+++ b/lib/renderer/init.js
@@ -37,13 +37,15 @@ let preloadScript = null
 let preloadScripts = []
 let isBackgroundPage = false
 let appPath = null
+let guestInstanceId = null
+let openerId = null
 for (const arg of process.argv) {
   if (arg.indexOf('--guest-instance-id=') === 0) {
     // This is a guest web view.
-    process.guestInstanceId = parseInt(arg.substr(arg.indexOf('=') + 1))
+    guestInstanceId = parseInt(arg.substr(arg.indexOf('=') + 1))
   } else if (arg.indexOf('--opener-id=') === 0) {
     // This is a guest BrowserWindow.
-    process.openerId = parseInt(arg.substr(arg.indexOf('=') + 1))
+    openerId = parseInt(arg.substr(arg.indexOf('=') + 1))
   } else if (arg.indexOf('--node-integration=') === 0) {
     nodeIntegration = arg.substr(arg.indexOf('=') + 1) === 'true'
   } else if (arg.indexOf('--preload=') === 0) {
@@ -59,6 +61,9 @@ for (const arg of process.argv) {
   }
 }
 
+const hiddenPage = process.argv.includes('--hidden-page')
+const usesNativeWindowOpen = process.argv.includes('--native-window-open')
+
 // The webContents preload script is loaded after the session preload scripts.
 if (preloadScript) {
   preloadScripts.push(preloadScript)
@@ -77,13 +82,13 @@ if (window.location.protocol === 'chrome-devtools:') {
   nodeIntegration = false
 } else {
   // Override default web functions.
-  require('@electron/internal/renderer/override')
+  require('@electron/internal/renderer/window-setup')(ipcRenderer, guestInstanceId, openerId, hiddenPage, usesNativeWindowOpen)
 
   // Inject content scripts.
   require('@electron/internal/renderer/content-scripts-injector')
 
   // Load webview tag implementation.
-  if (webviewTag && process.guestInstanceId == null) {
+  if (webviewTag && guestInstanceId == null) {
     require('@electron/internal/renderer/web-view/web-view')
     require('@electron/internal/renderer/web-view/web-view-attributes')
   }
@@ -162,11 +167,11 @@ require('@electron/internal/renderer/security-warnings')(nodeIntegration)
 // Report focus/blur events of webview to browser.
 // Note that while Chromium content APIs have observer for focus/blur, they
 // unfortunately do not work for webview.
-if (process.guestInstanceId) {
+if (guestInstanceId) {
   window.addEventListener('focus', () => {
-    ipcRenderer.send('ELECTRON_GUEST_VIEW_MANAGER_FOCUS_CHANGE', true, process.guestInstanceId)
+    ipcRenderer.send('ELECTRON_GUEST_VIEW_MANAGER_FOCUS_CHANGE', true, guestInstanceId)
   })
   window.addEventListener('blur', () => {
-    ipcRenderer.send('ELECTRON_GUEST_VIEW_MANAGER_FOCUS_CHANGE', false, process.guestInstanceId)
+    ipcRenderer.send('ELECTRON_GUEST_VIEW_MANAGER_FOCUS_CHANGE', false, guestInstanceId)
   })
 }
diff --git a/lib/renderer/override.js b/lib/renderer/override.js
index 413b8b8204..e69de29bb2 100644
--- a/lib/renderer/override.js
+++ b/lib/renderer/override.js
@@ -1,9 +0,0 @@
-'use strict'
-
-const ipcRenderer = require('@electron/internal/renderer/ipc-renderer-internal')
-
-const { guestInstanceId, openerId } = process
-const hiddenPage = process.argv.includes('--hidden-page')
-const usesNativeWindowOpen = process.argv.includes('--native-window-open')
-
-require('@electron/internal/renderer/window-setup')(ipcRenderer, guestInstanceId, openerId, hiddenPage, usesNativeWindowOpen)