Files app: Generate JS module for background page

Generate JS module for //ui/file_manager/file_manager/background/js/
* device_handler.js
* device_handler_unittest.m.js
* device_handler_unittest.m.js
* launcher.js
* launcher_search.js
* progress_center.js
* volume_manger_unittest.m.js

Bug: 1133186
Change-Id: Ib0ffb982f727a76692ceb0ba320269f7ffe9279d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2612548
Commit-Queue: Luciano Pacheco <lucmult@chromium.org>
Commit-Queue: Jeremie Boulic <jboulic@chromium.org>
Auto-Submit: Luciano Pacheco <lucmult@chromium.org>
Reviewed-by: Jeremie Boulic <jboulic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#840504}

chrome/browser/chromeos/file_manager/file_manager_jstest.cc

@@ -42,7 +42,7 @@ IN_PROC_BROWSER_TEST_F(FileManagerJsTest, Crostini) {
 }
 
 IN_PROC_BROWSER_TEST_F(FileManagerJsTest, DeviceHandlerTest) {
-  RunTestURL("background/js/device_handler_unittest_gen.html");
+  RunTestURL("background/js/device_handler_unittest.m_gen.html");
 }
 
 IN_PROC_BROWSER_TEST_F(FileManagerJsTest, DirectoryContentsTest) {
@@ -254,5 +254,5 @@ IN_PROC_BROWSER_TEST_F(FileManagerJsTest, UtilTest) {
 }
 
 IN_PROC_BROWSER_TEST_F(FileManagerJsTest, VolumeManagerTest) {
-  RunTestURL("background/js/volume_manager_unittest_gen.html");
+  RunTestURL("background/js/volume_manager_unittest.m_gen.html");
 }

ui/file_manager/BUILD.gn

@@ -58,7 +58,6 @@ group("unit_test_data") {
   testonly = true
   deps = [
     "base/js:js_test_gen_html",
-    "file_manager/background/js:js_test_gen_html",
     "file_manager/background/js:js_test_gen_html_modules",
     "file_manager/common/js:js_test_gen_html_modules",
     "file_manager/foreground/elements:js_test_gen_html_modules",

ui/file_manager/file_manager/background/js/BUILD.gn

@@ -27,7 +27,6 @@ group("closure_compile") {
     ":closure_compile_jsmodules",
     ":closure_compile_module",
     ":js_test_gen_html_modules_type_check_auto",
-    ":js_test_gen_html_type_check_auto",
     ":test_support_modules_type_check",
     ":test_support_type_check",
   ]
@@ -77,6 +76,7 @@ js_type_check("closure_compile_jsmodules") {
     ":app_windows.m",
     ":background_base.m",
     ":crostini.m",
+    ":device_handler.m",
     ":drive_sync_handler.m",
     ":duplicate_finder.m",
     ":entry_location_impl.m",
@@ -84,6 +84,8 @@ js_type_check("closure_compile_jsmodules") {
     ":file_operation_manager.m",
     ":file_operation_util.m",
     ":import_history.m",
+    ":launcher.m",
+    ":launcher_search.m",
     ":media_import_handler.m",
     ":media_scanner.m",
     ":metadata_proxy.m",
@@ -91,6 +93,7 @@ js_type_check("closure_compile_jsmodules") {
     ":mock_file_operation_manager.m",
     ":mock_progress_center.m",
     ":mount_metrics.m",
+    ":progress_center.m",
     ":task_queue.m",
     ":test_util_base.m",
     ":trash.m",
@@ -316,14 +319,38 @@ js_library("device_handler") {
   ]
 }
 
-js_unittest("device_handler_unittest") {
+js_library("device_handler.m") {
+  sources = [ "$root_gen_dir/ui/file_manager/file_manager/background/js/device_handler.m.js" ]
   deps = [
-    ":device_handler",
-    ":mock_progress_center",
-    ":mock_volume_manager",
-    "//ui/file_manager/base/js:mock_chrome",
-    "//ui/file_manager/base/js:test_error_reporting",
-    "//ui/file_manager/file_manager/common/js:test_importer_common",
+    ":volume_manager_factory.m",
+    "//ui/file_manager/externs:volume_info.m",
+    "//ui/file_manager/externs:volume_manager.m",
+    "//ui/file_manager/externs/background:progress_center.m",
+    "//ui/file_manager/file_manager/common/js:async_util.m",
+    "//ui/file_manager/file_manager/common/js:importer_common.m",
+    "//ui/file_manager/file_manager/common/js:metrics.m",
+    "//ui/file_manager/file_manager/common/js:progress_center_common.m",
+    "//ui/file_manager/file_manager/common/js:util.m",
+    "//ui/webui/resources/js/cr:event_target.m",
+  ]
+
+  extra_deps = [ ":modulize" ]
+}
+
+js_unittest("device_handler_unittest.m") {
+  deps = [
+    ":device_handler.m",
+    ":mock_progress_center.m",
+    ":mock_volume_manager.m",
+    "//chrome/test/data/webui:chai_assert",
+    "//ui/file_manager/base/js:mock_chrome.m",
+    "//ui/file_manager/base/js:test_error_reporting.m",
+    "//ui/file_manager/base/js:volume_manager_types.m",
+    "//ui/file_manager/externs:volume_info.m",
+    "//ui/file_manager/file_manager/common/js:importer_common.m",
+    "//ui/file_manager/file_manager/common/js:metrics.m",
+    "//ui/file_manager/file_manager/common/js:mock_entry.m",
+    "//ui/webui/resources/js:load_time_data.m",
   ]
 }
 
@@ -637,6 +664,18 @@ js_library("launcher") {
   ]
 }
 
+js_library("launcher.m") {
+  sources = [
+    "$root_gen_dir/ui/file_manager/file_manager/background/js/launcher.m.js",
+  ]
+  deps = [
+    ":app_window_wrapper.m",
+    "//ui/file_manager/file_manager/common/js:util.m",
+  ]
+
+  extra_deps = [ ":modulize" ]
+}
+
 js_library("launcher_search") {
   deps = [
     ":launcher",
@@ -646,6 +685,20 @@ js_library("launcher_search") {
   ]
 }
 
+js_library("launcher_search.m") {
+  sources = [ "$root_gen_dir/ui/file_manager/file_manager/background/js/launcher_search.m.js" ]
+  deps = [
+    ":launcher.m",
+    ":volume_manager_factory.m",
+    "//ui/file_manager/file_manager/common/js:file_type.m",
+    "//ui/file_manager/file_manager/common/js:util.m",
+  ]
+
+  externs_list = [ "//ui/file_manager/externs/launcher_search_provider.js" ]
+
+  extra_deps = [ ":modulize" ]
+}
+
 js_library("media_import_handler") {
   deps = [
     ":drive_sync_handler",
@@ -834,6 +887,19 @@ js_library("progress_center") {
   ]
 }
 
+js_library("progress_center.m") {
+  sources = [ "$root_gen_dir/ui/file_manager/file_manager/background/js/progress_center.m.js" ]
+  deps = [
+    "//ui/file_manager/externs:progress_center_panel.m",
+    "//ui/file_manager/externs/background:progress_center.m",
+    "//ui/file_manager/file_manager/common/js:async_util.m",
+    "//ui/file_manager/file_manager/common/js:progress_center_common.m",
+    "//ui/file_manager/file_manager/common/js:util.m",
+  ]
+
+  extra_deps = [ ":modulize" ]
+}
+
 js_library("runtime_loaded_test_util") {
   # TODO(tapted): Move this target to //ui/file_manager/base. It is used in the
   # background page of all |related_apps|, but loaded at runtime by
@@ -1071,12 +1137,18 @@ js_library("volume_manager_factory.m") {
   extra_deps = [ ":modulize" ]
 }
 
-js_unittest("volume_manager_unittest") {
+js_unittest("volume_manager_unittest.m") {
   deps = [
-    ":volume_manager_factory",
-    "//ui/file_manager/base/js:mock_chrome",
-    "//ui/file_manager/base/js:test_error_reporting",
-    "//ui/file_manager/file_manager/common/js:mock_entry",
+    ":volume_info_impl.m",
+    ":volume_manager_factory.m",
+    ":volume_manager_impl.m",
+    ":volume_manager_util.m",
+    "//chrome/test/data/webui:chai_assert",
+    "//ui/file_manager/base/js:mock_chrome.m",
+    "//ui/file_manager/base/js:test_error_reporting.m",
+    "//ui/file_manager/base/js:volume_manager_types.m",
+    "//ui/file_manager/file_manager/common/js:mock_entry.m",
+    "//ui/webui/resources/js:load_time_data.m",
   ]
 }
 
@@ -1104,6 +1176,7 @@ js_library("volume_manager_util.m") {
 js_test_gen_html("js_test_gen_html_modules") {
   deps = [
     ":crostini_unittest.m",
+    ":device_handler_unittest.m",
     ":drive_sync_handler_unittest.m",
     ":duplicate_finder_unittest.m",
     ":file_operation_handler_unittest.m",
@@ -1115,6 +1188,7 @@ js_test_gen_html("js_test_gen_html_modules") {
     ":mount_metrics_unittest.m",
     ":task_queue_unittest.m",
     ":trash_unittest.m",
+    ":volume_manager_unittest.m",
   ]
   js_module = true
 
@@ -1127,13 +1201,6 @@ js_test_gen_html("js_test_gen_html_modules") {
       ]
 }
 
-js_test_gen_html("js_test_gen_html") {
-  deps = [
-    ":device_handler_unittest",
-    ":volume_manager_unittest",
-  ]
-}
-
 js_modulizer("modulize") {
   input_files = [
     "metadata_proxy.js",
@@ -1166,6 +1233,10 @@ js_modulizer("modulize") {
     "file_operation_handler.js",
     "file_operation_manager.js",
     "trash.js",
+    "progress_center.js",
+    "device_handler.js",
+    "launcher.js",
+    "launcher_search.js",
   ]
 
   namespace_rewrites = cr_namespace_rewrites

ui/file_manager/file_manager/background/js/device_handler.js

@@ -2,8 +2,21 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// clang-format off
+// #import {metrics} from '../../common/js/metrics.m.js';
+// #import {AsyncUtil} from '../../common/js/async_util.m.js';
+// #import {importer} from '../../common/js/importer_common.m.js';
+// #import {volumeManagerFactory} from './volume_manager_factory.m.js';
+// #import {ProgressCenterItem, ProgressItemType, ProgressItemState} from '../../common/js/progress_center_common.m.js';
+// #import {util, strf, str} from '../../common/js/util.m.js';
+// #import {VolumeInfo} from '../../../externs/volume_info.m.js';
+// #import {VolumeManager} from '../../../externs/volume_manager.m.js';
+// #import {ProgressCenter} from '../../../externs/background/progress_center.m.js';
+// #import {NativeEventTarget as EventTarget} from 'chrome://resources/js/cr/event_target.m.js';
+// clang-format on
+
 /** Handler of device event. */
-class DeviceHandler extends cr.EventTarget {
+/* #export */ class DeviceHandler extends cr.EventTarget {
   /** @param {!ProgressCenter} progressCenter */
   constructor(progressCenter) {
     super();

ui/file_manager/file_manager/background/js/device_handler_unittest.js → ui/file_manager/file_manager/background/js/device_handler_unittest.m.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
-'use strict';
+
+import {loadTimeData} from 'chrome://resources/js/load_time_data.m.js';
+import {assertEquals, assertFalse, assertTrue} from 'chrome://test/chai_assert.js';
+
+import {installMockChrome, MockChromeStorageAPI} from '../../../base/js/mock_chrome.m.js';
+import {reportPromise} from '../../../base/js/test_error_reporting.m.js';
+import {VolumeManagerCommon} from '../../../base/js/volume_manager_types.m.js';
+import {VolumeInfo} from '../../../externs/volume_info.m.js';
+import {importer} from '../../common/js/importer_common.m.js';
+import {metrics} from '../../common/js/metrics.m.js';
+import {MockFileSystem} from '../../common/js/mock_entry.m.js';
+
+import {DeviceHandler} from './device_handler.m.js';
+import {MockProgressCenter} from './mock_progress_center.m.js';
+import {MockVolumeManager} from './mock_volume_manager.m.js';
 
 /** @type {!MockVolumeManager} */
 let volumeManager;
@@ -17,16 +31,16 @@ let mockChrome;
 
 /**
  * Mock metrics.
- * @type {!Object}
+ * @param {string} name
+ * @param {*} value
+ * @param {Array<*>|number=} opt_validValues
  */
-window.metrics = {
-  recordEnum: function() {},
-};
+metrics.recordEnum = function(name, value, opt_validValues) {};
 
 // Set up the test components.
-function setUp() {
+export function setUp() {
   // Set up string assets.
-  window.loadTimeData.data = {
+  loadTimeData.data = {
     DEVICE_UNSUPPORTED_MESSAGE: 'DEVICE_UNSUPPORTED: $1',
     DEVICE_UNKNOWN_MESSAGE: 'DEVICE_UNKNOWN: $1',
     MULTIPART_DEVICE_UNSUPPORTED_MESSAGE: 'MULTIPART_DEVICE_UNSUPPORTED: $1',
@@ -34,13 +48,13 @@ function setUp() {
     FORMAT_SUCCESS_MESSAGE: 'FORMAT_SUCCESS_MESSAGE: $1',
     FORMAT_FAILURE_MESSAGE: 'FORMAT_FAILURE_MESSAGE: $1',
   };
-  window.loadTimeData.getString = id => {
-    return window.loadTimeData.data_[id] || id;
+  loadTimeData.getString = id => {
+    return loadTimeData.data_[id] || id;
   };
-  window.loadTimeData.getBoolean = id => {
+  loadTimeData.getBoolean = id => {
     return id === 'ARC_USB_STORAGE_UI_ENABLED' ? true : false;
   };
-  window.loadTimeData.valueExists = id => {
+  loadTimeData.valueExists = id => {
     return id === 'ARC_USB_STORAGE_UI_ENABLED';
   };
 
@@ -57,7 +71,7 @@ function setUpInIncognitoContext() {
   mockChrome.extension.inIncognitoContext = true;
 }
 
-function testGoodDevice(callback) {
+export function testGoodDevice(callback) {
   // Turn off ARC so that the notification won't show the "OPEN SETTINGS"
   // button.
   mockChrome.fileManagerPrivate.arcEnabledPref = false;
@@ -85,7 +99,7 @@ function testGoodDevice(callback) {
       callback);
 }
 
-function testGoodDeviceWithAllowPlayStoreMessage(callback) {
+export function testGoodDeviceWithAllowPlayStoreMessage(callback) {
   // Turn on ARC so that the notification shows the "OPEN SETTINGS" button.
   mockChrome.fileManagerPrivate.arcEnabledPref = true;
   // Turn off the ARC pref so that the notification shows the "Allow Play Store
@@ -117,7 +131,7 @@ function testGoodDeviceWithAllowPlayStoreMessage(callback) {
       callback);
 }
 
-function testGoodDeviceWithPlayStoreAppsHaveAccessMessage(callback) {
+export function testGoodDeviceWithPlayStoreAppsHaveAccessMessage(callback) {
   // Turn on ARC so that the notification shows the "OPEN SETTINGS" button.
   mockChrome.fileManagerPrivate.arcEnabledPref = true;
   // Turn on the ARC pref so that the notification shows the "Play Store apps
@@ -152,7 +166,7 @@ function testGoodDeviceWithPlayStoreAppsHaveAccessMessage(callback) {
       callback);
 }
 
-function testRemovableMediaDeviceWithImportEnabled(callback) {
+export function testRemovableMediaDeviceWithImportEnabled(callback) {
   const storage = new MockChromeStorageAPI();
 
   setupFileSystem(VolumeManagerCommon.VolumeType.REMOVABLE, 'blabbity', [
@@ -182,7 +196,7 @@ function testRemovableMediaDeviceWithImportEnabled(callback) {
       callback);
 }
 
-function testMtpMediaDeviceWithImportEnabled(callback) {
+export function testMtpMediaDeviceWithImportEnabled(callback) {
   const storage = new MockChromeStorageAPI();
 
   setupFileSystem(VolumeManagerCommon.VolumeType.MTP, 'blabbity', [
@@ -212,7 +226,7 @@ function testMtpMediaDeviceWithImportEnabled(callback) {
       callback);
 }
 
-function testGoodDeviceNotNavigated() {
+export function testGoodDeviceNotNavigated() {
   mockChrome.fileManagerPrivate.onMountCompleted.dispatch({
     eventType: 'mount',
     status: 'success',
@@ -229,7 +243,7 @@ function testGoodDeviceNotNavigated() {
   assertFalse(mockChrome.notifications.resolver.settled);
 }
 
-function testGoodDeviceWithBadParent(callback) {
+export function testGoodDeviceWithBadParent(callback) {
   mockChrome.fileManagerPrivate.onMountCompleted.dispatch({
     eventType: 'mount',
     status: 'error_internal',
@@ -252,7 +266,7 @@ function testGoodDeviceWithBadParent(callback) {
       callback);
 }
 
-function testGoodDeviceWithBadParent_DuplicateMount(callback) {
+export function testGoodDeviceWithBadParent_DuplicateMount(callback) {
   mockChrome.fileManagerPrivate.onMountCompleted.dispatch({
     eventType: 'mount',
     status: 'success',
@@ -289,7 +303,7 @@ function testGoodDeviceWithBadParent_DuplicateMount(callback) {
       callback);
 }
 
-function testUnsupportedDevice(callback) {
+export function testUnsupportedDevice(callback) {
   mockChrome.fileManagerPrivate.onMountCompleted.dispatch({
     eventType: 'mount',
     status: 'error_unsupported_filesystem',
@@ -312,7 +326,7 @@ function testUnsupportedDevice(callback) {
       callback);
 }
 
-function testUnknownDevice(callback) {
+export function testUnknownDevice(callback) {
   // Emulate adding a device which has unknown filesystem.
   mockChrome.fileManagerPrivate.onMountCompleted.dispatch({
     eventType: 'mount',
@@ -337,7 +351,7 @@ function testUnknownDevice(callback) {
       callback);
 }
 
-function testUnknownReadonlyDevice(callback) {
+export function testUnknownReadonlyDevice(callback) {
   // Emulate adding a device which has unknown filesystem but is read-only.
   mockChrome.fileManagerPrivate.onMountCompleted.dispatch({
     eventType: 'mount',
@@ -362,7 +376,7 @@ function testUnknownReadonlyDevice(callback) {
       callback);
 }
 
-function testUnsupportedWithUnknownParentReplacesNotification() {
+export function testUnsupportedWithUnknownParentReplacesNotification() {
   mockChrome.fileManagerPrivate.onMountCompleted.dispatch({
     eventType: 'mount',
     status: 'error_internal',
@@ -397,7 +411,7 @@ function testUnsupportedWithUnknownParentReplacesNotification() {
       mockChrome.notifications.items['deviceFail:/device/path'].message);
 }
 
-function testMountPartialSuccess(callback) {
+export function testMountPartialSuccess(callback) {
   mockChrome.fileManagerPrivate.onMountCompleted.dispatch({
     eventType: 'mount',
     status: 'success',
@@ -441,7 +455,7 @@ function testMountPartialSuccess(callback) {
       callback);
 }
 
-function testUnknown(callback) {
+export function testUnknown(callback) {
   mockChrome.fileManagerPrivate.onMountCompleted.dispatch({
     eventType: 'mount',
     status: 'error_unknown',
@@ -464,7 +478,7 @@ function testUnknown(callback) {
       callback);
 }
 
-function testNonASCIILabel(callback) {
+export function testNonASCIILabel(callback) {
   mockChrome.fileManagerPrivate.onMountCompleted.dispatch({
     eventType: 'mount',
     status: 'error_internal',
@@ -488,7 +502,7 @@ function testNonASCIILabel(callback) {
       callback);
 }
 
-function testMulitpleFail() {
+export function testMulitpleFail() {
   // The first parent error.
   mockChrome.fileManagerPrivate.onMountCompleted.dispatch({
     eventType: 'mount',
@@ -559,7 +573,7 @@ function testMulitpleFail() {
       mockChrome.notifications.items['deviceFail:/device/path'].message);
 }
 
-function testDisabledDevice() {
+export function testDisabledDevice() {
   mockChrome.fileManagerPrivate.onDeviceChanged.dispatch(
       {type: 'disabled', devicePath: '/device/path'});
   assertEquals(1, Object.keys(mockChrome.notifications.items).length);
@@ -572,7 +586,7 @@ function testDisabledDevice() {
   assertEquals(0, Object.keys(mockChrome.notifications.items).length);
 }
 
-function testFormatSucceeded() {
+export function testFormatSucceeded() {
   mockChrome.fileManagerPrivate.onDeviceChanged.dispatch(
       {type: 'format_start', devicePath: '/device/path', deviceLabel: 'label'});
   assertEquals(1, progressCenter.getItemCount());
@@ -591,7 +605,7 @@ function testFormatSucceeded() {
       progressCenter.getItemById('format:/device/path').message);
 }
 
-function testFormatFailed() {
+export function testFormatFailed() {
   mockChrome.fileManagerPrivate.onDeviceChanged.dispatch(
       {type: 'format_start', devicePath: '/device/path', deviceLabel: 'label'});
   assertEquals(1, progressCenter.getItemCount());
@@ -607,7 +621,7 @@ function testFormatFailed() {
       progressCenter.getItemById('format:/device/path').message);
 }
 
-function testPartitionSucceeded() {
+export function testPartitionSucceeded() {
   mockChrome.fileManagerPrivate.onDeviceChanged.dispatch({
     type: 'partition_start',
     devicePath: '/device/path',
@@ -623,7 +637,7 @@ function testPartitionSucceeded() {
   assertEquals(0, progressCenter.getItemCount());
 }
 
-function testPartitionFailed() {
+export function testPartitionFailed() {
   mockChrome.fileManagerPrivate.onDeviceChanged.dispatch({
     type: 'partition_start',
     devicePath: '/device/path',
@@ -642,7 +656,7 @@ function testPartitionFailed() {
       progressCenter.getItemById('partition:/device/path').message);
 }
 
-function testRenameSucceeded() {
+export function testRenameSucceeded() {
   mockChrome.fileManagerPrivate.onDeviceChanged.dispatch(
       {type: 'rename_start', devicePath: '/device/path'});
   assertEquals(0, Object.keys(mockChrome.notifications.items).length);
@@ -652,7 +666,7 @@ function testRenameSucceeded() {
   assertEquals(0, Object.keys(mockChrome.notifications.items).length);
 }
 
-function testRenameFailed() {
+export function testRenameFailed() {
   mockChrome.fileManagerPrivate.onDeviceChanged.dispatch(
       {type: 'rename_start', devicePath: '/device/path'});
   assertEquals(0, Object.keys(mockChrome.notifications.items).length);
@@ -665,7 +679,7 @@ function testRenameFailed() {
       mockChrome.notifications.items['renameFail:/device/path'].message);
 }
 
-function testDeviceHardUnplugged() {
+export function testDeviceHardUnplugged() {
   mockChrome.fileManagerPrivate.onDeviceChanged.dispatch(
       {type: 'hard_unplugged', devicePath: '/device/path'});
   assertEquals(1, Object.keys(mockChrome.notifications.items).length);
@@ -674,7 +688,7 @@ function testDeviceHardUnplugged() {
       mockChrome.notifications.items['hardUnplugged:/device/path'].message);
 }
 
-function testNotificationClicked(callback) {
+export function testNotificationClicked(callback) {
   const devicePath = '/device/path';
   const notificationId = 'deviceNavigation:' + devicePath;
 
@@ -697,7 +711,7 @@ function testNotificationClicked(callback) {
       callback);
 }
 
-function testMiscMessagesInIncognito() {
+export function testMiscMessagesInIncognito() {
   setUpInIncognitoContext();
   mockChrome.fileManagerPrivate.onDeviceChanged.dispatch(
       {type: 'format_start', devicePath: '/device/path', deviceLabel: 'label'});
@@ -705,7 +719,7 @@ function testMiscMessagesInIncognito() {
   assertEquals(0, progressCenter.getItemCount());
 }
 
-function testMountCompleteInIncognito() {
+export function testMountCompleteInIncognito() {
   setUpInIncognitoContext();
   mockChrome.fileManagerPrivate.onMountCompleted.dispatch({
     eventType: 'mount',

ui/file_manager/file_manager/background/js/launcher.js

@@ -2,6 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+/**
+ * @fileoverview
+ * @suppress {uselessCode} Temporary suppress because of the line exporting.
+ */
+
+// #import {AppWindowWrapper} from './app_window_wrapper.m.js';
+// #import {util} from '../../common/js/util.m.js';
+
 /**
  * @type {!Object}
  */
@@ -12,7 +20,7 @@ var launcher = {};
  * Type of a Files app's instance launch.
  * @enum {number}
  */
-const LaunchType = {
+/* #export */ const LaunchType = {
   ALWAYS_CREATE: 0,
   FOCUS_ANY_OR_CREATE: 1,
   FOCUS_SAME_OR_CREATE: 2
@@ -174,3 +182,6 @@ launcher.launchFileManager = async (opt_appState, opt_id, opt_type) => {
   appWindow.rawAppWindow.focus();
   return appId;
 };
+
+// eslint-disable-next-line semi,no-extra-semi
+/* #export */ {launcher};

ui/file_manager/file_manager/background/js/launcher_search.js

@@ -2,10 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// #import {FileType} from '../../common/js/file_type.m.js';
+// #import {launcher, LaunchType} from './launcher.m.js';
+// #import {util} from '../../common/js/util.m.js';
+// #import {volumeManagerFactory} from './volume_manager_factory.m.js';
+
 /**
  * Provides drive search results to chrome launcher.
  */
-class LauncherSearch {
+/* #export */ class LauncherSearch {
   constructor() {
     // Launcher search provider is restricted to dev channel at now.
     if (!chrome.launcherSearchProvider) {

ui/file_manager/file_manager/background/js/progress_center.js

@@ -2,12 +2,20 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// clang-format off
+// #import {ProgressCenterPanelInterface} from '../../../externs/progress_center_panel.m.js';
+// #import {ProgressCenter} from '../../../externs/background/progress_center.m.js';
+// #import {str} from '../../common/js/util.m.js';
+// #import {AsyncUtil} from '../../common/js/async_util.m.js';
+// #import {ProgressItemState, ProgressCenterItem} from '../../common/js/progress_center_common.m.js';
+// clang-format on
+
 /**
  * Implementation of {ProgressCenter} at the background page.
  * @implements {ProgressCenter}
  * @final
  */
-class ProgressCenterImpl {
+/* #export */ class ProgressCenterImpl {
   constructor() {
     /**
      * Current items managed by the progress center.

ui/file_manager/file_manager/background/js/volume_manager_unittest.js → ui/file_manager/file_manager/background/js/volume_manager_unittest.m.js

@@ -2,12 +2,25 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import {loadTimeData} from 'chrome://resources/js/load_time_data.m.js';
+import {assertEquals, assertFalse, assertTrue} from 'chrome://test/chai_assert.js';
+
+import {installMockChrome, MockCommandLinePrivate} from '../../../base/js/mock_chrome.m.js';
+import {assertRejected, reportPromise} from '../../../base/js/test_error_reporting.m.js';
+import {VolumeManagerCommon} from '../../../base/js/volume_manager_types.m.js';
+import {MockDirectoryEntry, MockFileEntry, MockFileSystem} from '../../common/js/mock_entry.m.js';
+
+import {VolumeInfoImpl} from './volume_info_impl.m.js';
+import {volumeManagerFactory} from './volume_manager_factory.m.js';
+import {VolumeManagerImpl} from './volume_manager_impl.m.js';
+import {volumeManagerUtil} from './volume_manager_util.m.js';
+
 let mockChrome;
 let createVolumeInfoOriginal;
 
-function setUp() {
-  window.loadTimeData.getString = id => id;
-  window.loadTimeData.data = {};
+export function setUp() {
+  loadTimeData.getString = id => id;
+  loadTimeData.data = {};
 
   // Set up mock of chrome.fileManagerPrivate APIs.
   mockChrome = {
@@ -133,7 +146,7 @@ function setUp() {
   createVolumeInfoOriginal = volumeManagerUtil.createVolumeInfo;
 }
 
-function tearDown() {
+export function tearDown() {
   volumeManagerFactory.revokeInstanceForTesting();
   // To avoid a closure warning assigning to |chrome|, tearDown() does not
   // balance the call to installMockChrome() here.
@@ -156,7 +169,7 @@ function getMockProfile() {
   };
 }
 
-function testGetVolumeInfo(callback) {
+export function testGetVolumeInfo(callback) {
   reportPromise(
       volumeManagerFactory.getInstance().then(volumeManager => {
         const entry = MockFileEntry.create(
@@ -170,7 +183,7 @@ function testGetVolumeInfo(callback) {
       callback);
 }
 
-function testGetDriveConnectionState(callback) {
+export function testGetDriveConnectionState(callback) {
   reportPromise(
       volumeManagerFactory.getInstance().then(volumeManager => {
         // Default connection state is online
@@ -195,7 +208,7 @@ function testGetDriveConnectionState(callback) {
       callback);
 }
 
-function testMountArchiveAndUnmount(callback) {
+export function testMountArchiveAndUnmount(callback) {
   const test = async () => {
     // Set states of mock fileManagerPrivate APIs.
     const mountSourcePath = '/usr/local/home/test/Downloads/foobar.zip';
@@ -246,7 +259,7 @@ function testMountArchiveAndUnmount(callback) {
   reportPromise(test(), callback);
 }
 
-function testGetCurrentProfileVolumeInfo(callback) {
+export function testGetCurrentProfileVolumeInfo(callback) {
   reportPromise(
       volumeManagerFactory.getInstance().then(volumeManager => {
         const volumeInfo = volumeManager.getCurrentProfileVolumeInfo(
@@ -260,7 +273,7 @@ function testGetCurrentProfileVolumeInfo(callback) {
       callback);
 }
 
-function testGetLocationInfo(callback) {
+export function testGetLocationInfo(callback) {
   reportPromise(
       volumeManagerFactory.getInstance().then(volumeManager => {
         const downloadEntry = MockFileEntry.create(
@@ -398,7 +411,7 @@ function testGetLocationInfo(callback) {
       callback);
 }
 
-function testWhenReady(callback) {
+export function testWhenReady(callback) {
   volumeManagerFactory.getInstance().then((volumeManager) => {
     const promiseBeforeAdd = volumeManager.whenVolumeInfoReady('volumeId');
     const volumeInfo = new VolumeInfoImpl(
@@ -432,7 +445,7 @@ function testWhenReady(callback) {
   });
 }
 
-function testDriveMountedDuringInitialization(callback) {
+export function testDriveMountedDuringInitialization(callback) {
   const test = async () => {
     const sendVolumeMetadataListPromise = new Promise(resolve => {
       chrome.fileManagerPrivate.getVolumeMetadataList = resolve;
@@ -471,7 +484,7 @@ function testDriveMountedDuringInitialization(callback) {
   reportPromise(test(), callback);
 }
 
-function testErrorPropagatedDuringInitialization(done) {
+export function testErrorPropagatedDuringInitialization(done) {
   chrome.fileManagerPrivate.getVolumeMetadataList = () => {
     throw new Error('Dummy error for test purpose');
   };
@@ -483,7 +496,7 @@ function testErrorPropagatedDuringInitialization(done) {
  * Tests that an error initializing one volume doesn't stop other volumes to be
  * initialized. crbug.com/1041340
  */
-async function testErrorInitializingVolume(done) {
+export async function testErrorInitializingVolume(done) {
   // Confirm that a Drive volume is on faked getVolumeMetadataList().
   assertTrue(
       chrome.fileManagerPrivate.volumeMetadataList_.some(volumeMetadata => {
@@ -522,7 +535,7 @@ async function testErrorInitializingVolume(done) {
  * Tests VolumeInfoImpl doesn't raise exception if null is passed for
  * filesystem. crbug.com/1041340
  */
-async function testDriveWithNullFilesystem(done) {
+export async function testDriveWithNullFilesystem(done) {
   // Get Drive volume metadata from faked getVolumeMetadataList().
   const driveVolumeMetadata =
       chrome.fileManagerPrivate.volumeMetadataList_.find(volumeMetadata => {