Bug 1599205 Part 2: fix onChange event details object r=zombie

Differential Revision: https://phabricator.services.mozilla.com/D54639

--HG--
extra : moz-landing-system : lando

toolkit/components/extensions/ExtensionPreferencesManager.jsm

@@ -561,9 +561,7 @@ this.ExtensionPreferencesManager = {
         name: `${name}.onChange`,
         register: fire => {
           let listener = async () => {
-            fire.async({
-              details: await settingsAPI.get({}),
-            });
+            fire.async(await settingsAPI.get({}));
           };
           Management.on(`extension-setting-changed:${name}`, listener);
           return () => {

toolkit/components/extensions/parent/ext-browserSettings.js

@@ -253,10 +253,8 @@ this.browserSettings = class extends ExtensionAPI {
             register: fire => {
               let listener = () => {
                 fire.async({
-                  details: {
                   levelOfControl: "not_controllable",
                   value: Services.prefs.getStringPref(HOMEPAGE_URL_PREF),
-                  },
                 });
               };
               Services.prefs.addObserver(HOMEPAGE_URL_PREF, listener);
@@ -304,10 +302,8 @@ this.browserSettings = class extends ExtensionAPI {
             register: fire => {
               let listener = (text, id) => {
                 fire.async({
-                  details: {
                   levelOfControl: "not_controllable",
                   value: aboutNewTabService.newTabURL,
-                  },
                 });
               };
               Services.obs.addObserver(listener, "newtab-url-changed");

toolkit/components/extensions/parent/ext-captivePortal.js

@@ -119,10 +119,8 @@ this.captivePortal = class extends ExtensionAPI {
             register: fire => {
               let listener = (text, id) => {
                 fire.async({
-                  details: {
                   levelOfControl: "not_controllable",
                   value: Services.prefs.getStringPref(CAPTIVE_URL_PREF),
-                  },
                 });
               };
               Services.prefs.addObserver(CAPTIVE_URL_PREF, listener);

toolkit/components/extensions/test/xpcshell/test_ext_browserSettings.js

@@ -48,7 +48,7 @@ add_task(async function test_browser_settings() {
       if (!listeners.has(apiName)) {
         apiObj.onChange.addListener(details => {
           browser.test.sendMessage("onChange", {
-            details: details.details,
+            details,
             setting: apiName,
           });
         });

toolkit/components/extensions/test/xpcshell/test_ext_captivePortal_url.js

@@ -4,6 +4,9 @@
 
 add_task(async function test_url_get_without_set() {
   async function background() {
+    browser.captivePortal.canonicalURL.onChange.addListener(details => {
+      browser.test.sendMessage("url", details);
+    });
     let url = await browser.captivePortal.canonicalURL.get({});
     browser.test.sendMessage("url", url);
   }
@@ -30,5 +33,21 @@ add_task(async function test_url_get_without_set() {
     "The canonicalURL setting has the expected levelOfControl."
   );
 
+  Services.prefs.setStringPref(
+    "captivedetect.canonicalURL",
+    "http://example.com"
+  );
+  url = await extension.awaitMessage("url");
+  equal(
+    url.value,
+    "http://example.com",
+    "The canonicalURL setting has the expected value."
+  );
+  equal(
+    url.levelOfControl,
+    "not_controllable",
+    "The canonicalURL setting has the expected levelOfControl."
+  );
+
   await extension.unload();
 });