Fix minor presentation issues in RTL languages.

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

 /* Copyright (c) 2012 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. */
 
 /* The order of z-index:
  * - 2: drag-selection-border
  * - 3: preview-panel
  * - 500: scrollbar
  * - 500: splitter
  * - 525: spinner
@@ skipping 147 matching lines @@
 
 .dialog-navigation-list-header #profile-badge {
   display: inline-block;
   height: 29px;  /* Size of a profile image. */
   margin: 8px;
   vertical-align: top;
   width: 29px;  /* Size of a profile image. */
 }
 
 .dialog-navigation-list-header #app-name {
-  -webkit-margin-start: 15px;
   color: #303030;
   font-size: 130%;
+  margin: 0 15px;
 }
 
 .dialog-navigation-list-header #profile-badge:not([hidden]) + #app-name {
-  -webkit-margin-start: 0;
+  margin: 0;
 }
 
 .dialog-navigation-list-contents {
   display: -webkit-box;
   flex: 1 1 auto;
   position: relative;
 }
 
 .dialog-navigation-list-footer {
   display: -webkit-flex;
@@ skipping 430 matching lines @@
   background-image: -webkit-image-set(
     url('../images/files/ui/breadcrumb-separator.png') 1x,
     url('../images/files/ui/2x/breadcrumb-separator.png') 2x);
   background-position: center center;
   background-repeat: no-repeat;
   height: 10px;
   overflow: hidden;
   width: 25px;
 }
 
+html[dir='rtl'] .breadcrumbs .separator {
+  -webkit-transform: scaleX(-1);
+}
+
 #filename-input-box input {
   border: 1px solid #c8c8c8;
   border-radius: 1px;
   box-sizing: border-box;
   height: 31px;  /* border-box */
   margin-right: 30px;
 }
 
 .filelist-panel {
   -webkit-box-flex: 1;
@@ skipping 1396 matching lines @@
   display: none;
 }
 
 #progress-center-close-view.single button.open {
   display: none;
 }
 
 #progress-center li:not(.cancelable) button.cancel {
   visibility: hidden;
 }