Separate the audio player app from Files.app

ui/file_manager/file_manager/audio_player/elements/volume_controller.css

Index: ui/file_manager/file_manager/audio_player/elements/volume_controller.css
diff --git a/ui/file_manager/file_manager/audio_player/elements/volume_controller.css b/ui/file_manager/file_manager/audio_player/elements/volume_controller.css
deleted file mode 100644
index 4e6880ee6ca08b467cd0e4da7ad3cd692b89d4e2..0000000000000000000000000000000000000000
--- a/ui/file_manager/file_manager/audio_player/elements/volume_controller.css
+++ /dev/null
@@ -1,52 +0,0 @@
-/* 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. */
-
-:host {
-  background: white;
-  display: block;
-  height: 100px;
-  position: relative;
-  width: 32px;
-}
-
-#background {
-  height: 100%;  /* will be overridden by javascript */
-  left: 0;
-  position: absolute;
-  top: 0;
-  width: 100%;
-}
-
-input[type='range'] {
-  -webkit-appearance: none !important;
-  -webkit-transform: rotate(90deg);
-  background: transparent;
-  outline: none;
-  position: absolute;
-  z-index: 1;
-}
-
-input[type='range']::-webkit-slider-thumb {
-  -webkit-appearance: none;
-  -webkit-transform: rotate(-90deg);
-  background-image: -webkit-image-set(
-      url(../assets/100/player_timeline_handler.png) 1x,
-      url(../assets/200/player_timeline_handler.png) 2x);
-  background-position: 50% 50%;
-  background-repeat: no-repeat no-repeat;
-  height: 24px;
-  position: relative;
-  width: 24px;
-}
-
-#bar {
-  background: #000;
-  bottom: 14px;
-  position: absolute;
-  top: 14px;
-}
-
-#bar .filled {
-  background: #aaa;
-}