Bug 1772742 - Port osfile.jsm usage to IOUtils in uriloader/ r=nika

Differential Revision: https://phabricator.services.mozilla.com/D148445

uriloader/exthandler/tests/mochitest/browser_download_skips_dialog.js

@@ -44,7 +44,7 @@ add_task(async function skipDialogAndDownloadFile() {
   BrowserTestUtils.removeTab(loadingTab);
 
   Assert.ok(
-    await OS.File.exists(download.target.path),
+    await IOUtils.exists(download.target.path),
     "The file should have been downloaded."
   );
 

uriloader/exthandler/tests/mochitest/browser_launched_app_save_directory.js

@@ -61,7 +61,7 @@ async function aDownloadLaunchedWithAppIsSavedInFolder(downloadDir) {
   );
 
   Assert.ok(
-    await OS.File.exists(download.target.path),
+    await IOUtils.exists(download.target.path),
     "The file should not have been deleted."
   );
 

uriloader/exthandler/tests/unit/head.js

@@ -13,7 +13,6 @@ var { AppConstants } = ChromeUtils.import(
 );
 var { FileUtils } = ChromeUtils.import("resource://gre/modules/FileUtils.jsm");
 var { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
-var { OS, require } = ChromeUtils.import("resource://gre/modules/osfile.jsm");
 var { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
 var { XPCOMUtils } = ChromeUtils.import(
   "resource://gre/modules/XPCOMUtils.jsm"
@@ -35,7 +34,7 @@ XPCOMUtils.defineLazyServiceGetter(
 
 do_get_profile();
 
-let jsonPath = OS.Path.join(OS.Constants.Path.profileDir, "handlers.json");
+let jsonPath = PathUtils.join(PathUtils.profileDir, "handlers.json");
 
 /**
  * Unloads the nsIHandlerService data store, so the back-end file can be
@@ -58,7 +57,7 @@ let unloadHandlerStore = async function() {
 let deleteHandlerStore = async function() {
   await unloadHandlerStore();
 
-  await OS.File.remove(jsonPath, { ignoreAbsent: true });
+  await IOUtils.remove(jsonPath, { ignoreAbsent: true });
 
   Services.prefs.clearUserPref("gecko.handlerService.defaultHandlersVersion");
 };
@@ -69,7 +68,7 @@ let deleteHandlerStore = async function() {
 let copyTestDataToHandlerStore = async function() {
   await unloadHandlerStore();
 
-  await OS.File.copy(do_get_file("handlers.json").path, jsonPath);
+  await IOUtils.copy(do_get_file("handlers.json").path, jsonPath);
 
   Services.prefs.setIntPref("gecko.handlerService.defaultHandlersVersion", 100);
 };

uriloader/exthandler/tests/unit/test_handlerService_store.js

@@ -654,7 +654,7 @@ add_task(async function test_store_keeps_unknown_properties() {
   gHandlerService.store(handlerInfo);
 
   await unloadHandlerStore();
-  let data = JSON.parse(new TextDecoder().decode(await OS.File.read(jsonPath)));
+  let data = await IOUtils.readJSON(jsonPath);
   Assert.equal(
     data.mimeTypes["example/type.handleinternally"].unknownProperty,
     "preserved"
@@ -743,7 +743,7 @@ add_task(async function test_store_gioHandlerApp() {
     possibleApplicationHandlers: [expectedGIOMimeHandlerApp, webHandlerApp],
   });
 
-  await OS.File.remove(dummyHandlerFile.path);
+  await IOUtils.remove(dummyHandlerFile.path);
 
   // After removing dummyHandlerFile, the handler should disappear from the
   // list of possibleApplicationHandlers and preferredAppHandler should be null.