Remove some platform specific stuff from views.

ui/file_manager/file_manager/foreground/css/list.css

Index: ui/file_manager/file_manager/foreground/css/list.css
diff --git a/ui/file_manager/file_manager/foreground/css/list.css b/ui/file_manager/file_manager/foreground/css/list.css
deleted file mode 100644
index d102d696dcdc54ad7652214ae7a7fb8fd492644c..0000000000000000000000000000000000000000
--- a/ui/file_manager/file_manager/foreground/css/list.css
+++ /dev/null
@@ -1,73 +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. */
-
-/* Derived from /ui/webui/resources/css/list.css. */
-
-list,
-grid {
-  display: block;
-  outline: none;
-  overflow: auto;
-  position: relative; /* Make sure that item offsets are relative to the
-                         list. */
-}
-
-list > *,
-grid > * {
-  -webkit-user-select: none;
-  position: relative; /* to allow overlap */
-  text-overflow: ellipsis;
-  white-space: pre;
-}
-
-list > * {
-  display: block;
-}
-
-grid > * {
-  display: inline-block;
-}
-
-list:focus > [lead],
-grid:focus > [lead] {
-  z-index: 2;
-}
-
-list:not([disabled]) > :hover,
-grid:not([disabled]) > :hover {
-  z-index: 1;
-}
-
-list > [selected],
-grid > [selected] {
-  z-index: 2;
-}
-
-list > .spacer,
-grid > .spacer {
-  box-sizing: border-box;
-  display: block;
-  overflow: hidden;
-  visibility: hidden;
-}
-
-list :-webkit-any(
-    input[type='input'],
-    input[type='password'],
-    input[type='search'],
-    input[type='text'],
-    input[type='url']),
-list :-webkit-any(
-    button,
-    input[type='button'],
-    input[type='submit'],
-    select):not(.custom-appearance):not(.link-button) {
-  line-height: normal;
-  vertical-align: middle;
-}
-
-list > [hidden],
-grid > [hidden] {
-  display: none;
-}