Bug 1772923 - Port osfile.jsm usage to IOUtils in security/manager/ r=keeler

Differential Revision: https://phabricator.services.mozilla.com/D153711

security/manager/pki/resources/content/pippki.js

@@ -10,8 +10,6 @@
  * pippki UI js files.
  */
 
-ChromeUtils.defineModuleGetter(this, "OS", "resource://gre/modules/osfile.jsm");
-
 function setText(id, value) {
   let element = document.getElementById(id);
   if (!element) {
@@ -159,7 +157,7 @@ async function exportToFile(parent, cert) {
       }
       break;
     case 2:
-      // OS.File.writeAtomic requires a utf-8 string or a typed array.
+      // IOUtils.write requires a typed array.
       // nsIX509Cert.getRawDER() returns an array (not a typed array), so we
       // convert it here.
       content = Uint8Array.from(cert.getRawDER());
@@ -178,7 +176,7 @@ async function exportToFile(parent, cert) {
       break;
   }
   try {
-    await OS.File.writeAtomic(fp.file.path, content);
+    await IOUtils.write(fp.file.path, content);
   } catch (ex) {
     let title = await document.l10n.formatValue("write-file-failure");
     alertPromptService(title, ex.toString());

security/manager/ssl/tests/mochitest/browser/browser_clientAuth_connection.js

@@ -307,12 +307,10 @@ add_task(async function testClearPrivateBrowsingState() {
 // Test that 3rd party certificates are taken into account when filtering client
 // certificates based on the acceptible CA list sent by the server.
 add_task(async function testCertFilteringWithIntermediate() {
-  let intermediateBytes = await OS.File.read(
+  let intermediateBytes = await IOUtils.readUTF8(
     getTestFilePath("intermediate.pem")
   ).then(
-    data => {
-      let decoder = new TextDecoder();
-      let pem = decoder.decode(data);
+    pem => {
       let base64 = pemToBase64(pem);
       let bin = atob(base64);
       let bytes = [];

security/manager/ssl/tests/mochitest/browser/head.js

@@ -2,8 +2,6 @@
    http://creativecommons.org/publicdomain/zero/1.0/ */
 "use strict";
 
-const { OS } = ChromeUtils.import("resource://gre/modules/osfile.jsm");
-
 var gCertDB = Cc["@mozilla.org/security/x509certdb;1"].getService(
   Ci.nsIX509CertDB
 );
@@ -47,7 +45,7 @@ function pemToBase64(pem) {
  *         A promise that will resolve with a handle to the certificate.
  */
 function readCertificate(filename, trustString) {
-  return OS.File.read(getTestFilePath(filename)).then(
+  return IOUtils.read(getTestFilePath(filename)).then(
     data => {
       let decoder = new TextDecoder();
       let pem = decoder.decode(data);