Separate the audio player app from Files.app

ui/file_manager/file_manager/audio_player/css/audio_player.css

Index: ui/file_manager/file_manager/audio_player/css/audio_player.css
diff --git a/ui/file_manager/file_manager/audio_player/css/audio_player.css b/ui/file_manager/file_manager/audio_player/css/audio_player.css
deleted file mode 100644
index 0dce3e31ed935b2a754f478ff9c87a89ef7992ef..0000000000000000000000000000000000000000
--- a/ui/file_manager/file_manager/audio_player/css/audio_player.css
+++ /dev/null
@@ -1,91 +0,0 @@
-/* Copyright 2013 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. */
-
-html {
-  height: 100%;
-}
-
-body {
-  -webkit-user-select: none;
-  display: flex;
-  flex-direction: column;
-  height: 100%;
-  margin: 0;
-  overflow: hidden;
-  padding: 0;
-}
-
-.header {
-  background: #fff;
-  border-bottom: 1px solid #ddd;
-  height: 32px;
-}
-
-div.audio-player {
-  color: #3d3d3d;
-  cursor: default;
-  flex: 1 1 auto;
-  font-family: Noto Sans UI, sans-serif;
-  font-size: 10pt;
-  position: relative;
-}
-
-.audio-player:not(.collapsed):not(.single-track) > .title-button {
-  background-color: #1f1f1f;
-}
-
-/* Customized scrollbar for the playlist. */
-
-::-webkit-scrollbar {
-  height: 16px;
-  width: 16px;
-}
-
-::-webkit-scrollbar-button {
-  height: 0;
-  width: 0;
-}
-
-::-webkit-scrollbar-thumb {
-  background-clip: padding-box;
-  background-color: rgba(255, 255, 255, 0.15);
-  box-shadow: inset 1px 1px 0 rgba(0, 0, 0, 0.10),
-              inset 0 -1px 0  rgba(0, 0, 0, 0.07);
-  min-height: 28px;
-}
-
-::-webkit-scrollbar-thumb:hover {
-  background-color: rgba(255, 255, 255, 0.20);
-  box-shadow: inset 1px 1px 1px rgba(0, 0, 0, 0.25);
-}
-
-::-webkit-scrollbar-thumb:active {
-  background-color: rgba(255, 255, 255, 0.25);
-  box-shadow: inset 1px 1px 3px rgba(0, 0, 0, 0.35);
-}
-
-::-webkit-scrollbar-thumb:vertical {
-  border-bottom: 0 solid transparent;
-  border-left: 5px solid transparent;
-  border-right: 0 solid transparent;
-  border-top: 0 solid transparent;
-}
-
-::-webkit-scrollbar-track:hover {
-  background-color: rgba(0, 0, 0, 0.05);
-  box-shadow: inset 1px 0 0 rgba(0, 0, 0, 0.10);
-}
-
-::-webkit-scrollbar-track:active {
-  background-color: rgba(0, 0, 0, 0.05);
-  box-shadow: inset 1px 0 0 rgba(0, 0, 0, 0.14),
-              inset -1px -1px 0 rgba(0, 0, 0, 0.07);
-}
-
-::-webkit-scrollbar-track:vertical {
-  background-clip: padding-box;
-  background-color: transparent;
-  border-left: 5px solid transparent;
-  border-right: 0 solid transparent;
-}