Clean-up: Change chrome/browser's CSS time units from s to ms.

chrome/browser/resources/print_preview/print_preview.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.
  */
 
 html {
   height: 100%;
 }
 
 body {
@@ skipping 292 matching lines @@
 
 #print-preview #mainview {
   -webkit-margin-start: 310px;
   -webkit-padding-start: 0;
   -webkit-user-select: none;
   background-color: #ccc;
   overflow: hidden;
 }
 
 #pdf-viewer {
-  /* pluginFadeInTransitionDuration = 0.2s */
-  -webkit-transition: opacity 0.2s linear;
-  /* pluginFadeInTransitionDelay = overlayFadeOutTransitionDuration = 0.1s */
-  -webkit-transition-delay: 0.1s;
+  /* pluginFadeInTransitionDuration = 200ms */
+  -webkit-transition: opacity 200ms linear;
+  /* pluginFadeInTransitionDelay = overlayFadeOutTransitionDuration = 100ms */
+  -webkit-transition-delay: 100ms;
   height: 100%;
   opacity: 1;
   width: 100%;
 }
 
 #pdf-viewer.invisible {
-  /* pluginFadeOutTransitionDuration = 0.1s */
-  -webkit-transition: opacity 0.1s linear;
-  /* pluginFadeOutTransitionDelay = 0.25s */
-  -webkit-transition-delay: 0.25s;
+  /* pluginFadeOutTransitionDuration = 100ms */
+  -webkit-transition: opacity 100ms linear;
+  /* pluginFadeOutTransitionDelay = 250ms */
+  -webkit-transition-delay: 250ms;
   opacity: 0;
 }
 
 #no-plugin {
   padding: 20px;
 }
 
 /* TODO(estade): this should be in a shared location but I'm afraid of the
  * damage it could do. */
 [hidden] {
   display: none !important;
 }
 
 #overlay-layer {
-  -webkit-transition: opacity 0.2s linear;
+  -webkit-transition: opacity 200ms linear;
   /* overlayFadeInTransitionDelay = pluginFadeOutTransitionDelay +
-   *     pluginFadeOutTransitionDuration = 0.35s */
-  -webkit-transition-delay: 0.35s;
+   *     pluginFadeOutTransitionDuration = 350ms */
+  -webkit-transition-delay: 350ms;
   -webkit-user-select: none;
   background: #cccccc;
   height: 100%;
   margin: 0;
   opacity: 1;
   position: absolute;
   width: 100%;
 }
 
 #overlay-layer.invisible {
-  /* overlayFadeOutTransitionDuration = 0.1s */
-  -webkit-transition: opacity 0.1s linear;
+  /* overlayFadeOutTransitionDuration = 100ms */
+  -webkit-transition: opacity 100ms linear;
   opacity: 0;
   pointer-events: none;
 }
 
 #messages {
   color: #404040;
   font-size: 13px;
   position: relative;
   text-align: center;
   text-shadow: 0 1px 0 rgba(255, 255, 255, .5);
@@ skipping 42 matching lines @@
 /* TODO(estade): unfork this code. */
 .button-strip {
   -webkit-box-orient: horizontal;
   -webkit-box-pack: end;
   display: -webkit-box;
 }
 
 html[toolkit=views] .button-strip {
   -webkit-box-direction: reverse;
 }