Files app: Concatenate background scripts.

ui/file_manager/audio_player/js/background_scripts.js

Index: ui/file_manager/audio_player/js/background_scripts.js
diff --git a/ash/public/interfaces/ash_window_type.mojom b/ui/file_manager/audio_player/js/background_scripts.js
similarity index 54%
copy from ash/public/interfaces/ash_window_type.mojom
copy to ui/file_manager/audio_player/js/background_scripts.js
index 61f2c4d6435fb90668777035bb9cdeeb3fa4c3b7..021778818d8976774139bec1bdcc0d4952e69f7d 100644
--- a/ash/public/interfaces/ash_window_type.mojom
+++ b/ui/file_manager/audio_player/js/background_scripts.js
@@ -2,12 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-module ash.mojom;
-
-enum AshWindowType {
-  SHELF = 0,
-  STATUS_AREA,
-  COUNT
-};
-
-const string kAshWindowType_Property = "ash:window-type";
+<include src="error_util.js">
+<include src="test_util.js">
+// The main background script must be at the end.
+<include src="background.js">