Audio player: Convert last dependencies in //ui/.../background/js/

In //ui/file_manager/file_manager/background/js:
- app_window.js
- app_window_wrapper.js
- background_base.js

Bug: 1133186
Change-Id: I5d90323c2f330eb4967c4710141d52ce9cd26b87
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2525885
Commit-Queue: Jeremie Boulic <jboulic@chromium.org>
Reviewed-by: Luciano Pacheco <lucmult@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825717}

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

@@ -72,6 +72,9 @@ js_type_check("closure_compile_module") {
 js_type_check("closure_compile_jsmodules") {
   uses_js_modules = true
   deps = [
+    ":app_window_wrapper.m",
+    ":app_windows.m",
+    ":background_base.m",
     ":entry_location_impl.m",
     ":volume_info_impl.m",
     ":volume_info_list_impl.m",
@@ -134,9 +137,30 @@ js_library("app_window_wrapper") {
   ]
 }
 
+js_library("app_window_wrapper.m") {
+  visibility += related_apps
+  sources = [ "$root_gen_dir/ui/file_manager/file_manager/background/js/app_window_wrapper.m.js" ]
+  deps = [
+    ":app_windows.m",
+    "//ui/file_manager/base/js:app_util.m",
+    "//ui/file_manager/file_manager/common/js:async_util.m",
+    "//ui/webui/resources/js:assert.m",
+  ]
+
+  extra_deps = [ ":modulize" ]
+}
+
 js_library("app_windows") {
 }
 
+js_library("app_windows.m") {
+  sources = [
+    "$root_gen_dir/ui/file_manager/file_manager/background/js/app_windows.m.js",
+  ]
+
+  extra_deps = [ ":modulize" ]
+}
+
 js_library("background") {
   deps = [
     ":app_windows",
@@ -172,6 +196,19 @@ js_library("background_base") {
   ]
 }
 
+js_library("background_base.m") {
+  visibility += related_apps
+  sources = [ "$root_gen_dir/ui/file_manager/file_manager/background/js/background_base.m.js" ]
+  deps = [
+    ":volume_manager_factory.m",
+    "//ui/file_manager/file_manager/common/js:util.m",
+    "//ui/webui/resources/js:assert.m",
+    "//ui/webui/resources/js:load_time_data.m",
+  ]
+
+  extra_deps = [ ":modulize" ]
+}
+
 js_library("crostini") {
   deps = [
     "//ui/file_manager/base/js:volume_manager_types",
@@ -745,6 +782,9 @@ js_test_gen_html("js_test_gen_html") {
 
 js_modulizer("modulize") {
   input_files = [
+    "app_windows.js",
+    "app_window_wrapper.js",
+    "background_base.js",
     "entry_location_impl.js",
     "mock_volume_manager.js",
     "volume_info_impl.js",

ui/file_manager/file_manager/background/js/app_window_wrapper.js

@@ -2,6 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+// clang-format off
+// #import './app_windows.m.js';
+// #import * as wrappedAsyncUtil from '../../common/js/async_util.m.js'; const {AsyncUtil} = wrappedAsyncUtil;
+// #import * as wrappedAppUtil from '../../../base/js/app_util.m.js'; const {appUtil} = wrappedAppUtil;
+// #import {assertInstanceof} from 'chrome://resources/js/assert.m.js';
+// clang-format on
+
 /**
  * Wrapper for an app window.
  *
@@ -13,7 +20,7 @@
  * 3. The app may have |unload| function to persist the app state that does not
  *    fit into |window.appState|.
  */
-class AppWindowWrapper {
+/* #export */ class AppWindowWrapper {
   /**
    * @param {string} url App window content url.
    * @param {string} id App window id.
@@ -313,7 +320,7 @@ AppWindowWrapper.SHIFT_DISTANCE = 40;
  * have |reload| method that re-initializes the app based on a changed
  * |window.appState|.
  */
-class SingletonAppWindowWrapper extends AppWindowWrapper {
+/* #export */ class SingletonAppWindowWrapper extends AppWindowWrapper {
   /**
    * @param {string} url App window content url.
    * @param {Object|function()} options Options object or a function to return

ui/file_manager/file_manager/background/js/app_windows.js

@@ -6,7 +6,7 @@
  * Map of all currently open file dialogs. The key is an app ID.
  * @type {!Object<!chrome.app.window.AppWindow>}
  */
-window.appWindows = {};
+window.appWindows = window.appWindows || {};
 
 /**
  * Gets similar windows, it means with the same initial url.

ui/file_manager/file_manager/background/js/background_base.js

@@ -2,13 +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 * as wrappedVolumeManagerFactory from './volume_manager_factory.m.js'; const {volumeManagerFactory} = wrappedVolumeManagerFactory;
+// #import * as wrappedUtil from '../../common/js/util.m.js'; const {util} = wrappedUtil;
+// #import {assert} from 'chrome://resources/js/assert.m.js';
+// #import {loadTimeData} from 'chrome://resources/js/load_time_data.m.js';
+// clang-format on
+
 /** @typedef {function(!Array<string>):!Promise} */
 let LaunchHandler;
 
 /**
  * Root class of the background page.
  */
-class BackgroundBase {
+/* #export */ class BackgroundBase {
   constructor() {
     /**
      * Map of all currently open file dialogs. The key is an app ID.