Bug 1790277 - Convert FromValidation JSM modules to ESMs. r=mconley.

Differential Revision: https://phabricator.services.mozilla.com/D157168

browser/actors/FormValidationChild.sys.mjs

@@ -8,13 +8,11 @@
  * the display of the help panel on invalid elements.
  */
 
-var EXPORTED_SYMBOLS = ["FormValidationChild"];
-
 const { LayoutUtils } = ChromeUtils.import(
   "resource://gre/modules/LayoutUtils.jsm"
 );
 
-class FormValidationChild extends JSWindowActorChild {
+export class FormValidationChild extends JSWindowActorChild {
   constructor() {
     super();
     this._validationMessage = "";

browser/actors/FormValidationParent.sys.mjs

@@ -8,8 +8,6 @@
 
 "use strict";
 
-var EXPORTED_SYMBOLS = ["FormValidationParent"];
-
 const lazy = {};
 
 ChromeUtils.defineModuleGetter(
@@ -44,7 +42,7 @@ class PopupShownObserver {
   ]);
 }
 
-class FormValidationParent extends JSWindowActorParent {
+export class FormValidationParent extends JSWindowActorParent {
   constructor() {
     super();
 

browser/actors/moz.build

@@ -63,8 +63,8 @@ FINAL_TARGET_FILES.actors += [
     "DOMFullscreenParent.jsm",
     "EncryptedMediaChild.jsm",
     "EncryptedMediaParent.jsm",
-    "FormValidationChild.jsm",
-    "FormValidationParent.jsm",
+    "FormValidationChild.sys.mjs",
+    "FormValidationParent.sys.mjs",
     "LightweightThemeChild.jsm",
     "LinkHandlerChild.jsm",
     "LinkHandlerParent.jsm",

browser/components/BrowserGlue.jsm

@@ -535,11 +535,11 @@ let JSWINDOWACTORS = {
 
   FormValidation: {
     parent: {
-      moduleURI: "resource:///actors/FormValidationParent.jsm",
+      esModuleURI: "resource:///actors/FormValidationParent.sys.mjs",
     },
 
     child: {
-      moduleURI: "resource:///actors/FormValidationChild.jsm",
+      esModuleURI: "resource:///actors/FormValidationChild.sys.mjs",
       events: {
         MozInvalidForm: {},
         // Listening to ‘pageshow’ event is only relevant if an invalid form