Moving checkboxes to a separate column.

chrome/browser/resources/file_manager/css/file_manager.css

 /*
  * Copyright (c) 2011 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.
  */
 
 /* Outer frame of the dialog. */
 body {
    -webkit-box-flex: 1;
    -webkit-box-orient: vertical;
@@ skipping 268 matching lines @@
   -webkit-box-orient: horizontal;
   display: -webkit-box;
   height: 61px;
   background-color: #F0F0F0;
   padding: 0px 14px 0px 14px;
 
   opacity: 1;
   -webkit-transform: translate(0, 0);
 }
 
-.preview-panel[hidden] {
+.preview-panel[visibility=hiding] {
   -webkit-transition: all 220ms ease;
   -webkit-transform: translate(0, 5px);
    opacity: 0;
 }
 
+.preview-panel[visibility=hidden] {
+  display: none;
+  opacity: 0;
+}
+
 .preview-thumbnails {
   display: -webkit-box;
   -webkit-box-orient: horizontal;
   padding-left: 39px;
   -webkit-box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.1);
 }
 
 .preview-thumbnails > div.img-container {
   width: 45px;
   height: 45px;
@@ skipping 86 matching lines @@
   opacity: 1 !important;
 }
 
 /* Column text containers. */
 .detail-name, .detail-size, .detail-type, .detail-date {
   padding-top: 2px;
 }
 
 .detail-icon-container {
   -webkit-box-orient: horizontal;
-  -webkit-box-flex: 1;
   -webkit-box-pack: end;
   display: -webkit-box;
 }
 
 /* The icon in the name column. */
 .detail-icon {
   background-image: url(../images/filetype_generic.png);
   background-position: center;
   background-repeat: no-repeat;
   height: 24px;
@@ skipping 80 matching lines @@
 
 .preview-img[src=''] {
   visibility: hidden;
 }
 
 /* Decoration when multiple images are selected. */
 .preview-img.multiple-selected {
   -webkit-box-shadow: 5px 5px 0 #aaa;
 }
 
-.preview-metadata {
-  -webkit-box-orient: vertical;
-  -webkit-box-flex: 1;
-  display: -webkit-box;
-  color: #666;
-}
-
 .metadata-item {
   -webkit-box-orient: horizontal;
   -webkit-box-flex: 1;
   display: -webkit-box;
   -webkit-padding-start: 8px;
 }
 
 .metadata-label {
   -webkit-margin-end: 6px;
 }
@@ skipping 53 matching lines @@
   display: -webkit-box;
 }
 
 /* A vertical spring. */
 .vertical-spacer {
   -webkit-box-orient: vertical;
   -webkit-box-flex: 1;
   display: -webkit-box;
 }
 
-.preview-metadata {
-    text-align:center;
-}
-
-.preview-metadata-table tbody tr th {
-    text-align: right;
-    color: #666;
-    font-size: 12px;
-    font-weight: normal;
-    padding-left:10px;
-}
-
-.preview-metadata-table tbody tr td {
-    text-align: left;
-    color:#000;
-    font-size: 12px;
-    font-weight: normal;
-}
-
 /* Overlay pane covering the entire file manager window (e.g. image editor)*/
 .overlay-pane {
   position: absolute;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   border: none;
   z-index: 100;
 }