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

chrome/browser/resources/options/options_page.css

 .hbox {
   display: -webkit-box;
   -webkit-box-orient: horizontal;
 }
 
 .vbox {
   display: -webkit-box;
   -webkit-box-orient: vertical;
 }
 
@@ skipping 45 matching lines @@
  */
 body {
   font-size: 16px;
 }
 </if>
 
 .overlay {
   -webkit-box-align: center;
   -webkit-box-orient: vertical;
   -webkit-box-pack: center;
-  -webkit-transition: 0.25s opacity;
+  -webkit-transition: 250ms opacity;
   background: -webkit-radial-gradient(rgba(127, 127, 127, 0.5),
                                       rgba(127, 127, 127, 0.5) 35%,
                                       rgba(0, 0, 0, 0.7));
   bottom: 0;
   display: -webkit-box;
   left: 0;
   overflow: auto;
   padding: 20px;
   padding-bottom: 130px;
   position: fixed;
@@ skipping 95 matching lines @@
   -webkit-box-shadow: 0px 5px 80px #505050;
   background: white;
   border: 1px solid rgb(188, 193, 208);
   border-radius: 2px;
   min-width: 400px;
   padding: 0;
   position: relative;
 }
 
 #subpage-backdrop {
-  -webkit-transition: 0.25s opacity;
+  -webkit-transition: 250ms opacity;
   background-color: rgba(233, 238, 242, .5);
   height: 100%;
   left: 216px;
   right: 216px;
   position: fixed;
   top: 0;
   width: 100%;
 }
 
 .subpage-sheet-container {
-  -webkit-transition: 0.25s opacity, 0.1s padding-left, 0.1s padding-right;
+  -webkit-transition: 250ms opacity, 100ms padding-left, 100ms padding-right;
   box-sizing: border-box;
   min-height: 100%;
   position: absolute;
   /* We set both left and right for the sake of RTL. */
   left: 0;
   right: 0;
   top: 0;
   width: 100%;
 }
 
@@ skipping 139 matching lines @@
 .settings-list-empty {
   background-color: #f4f4f4;
   box-sizing: border-box;
   min-height: 125px;
   padding-left: 20px;
   padding-top: 20px;
 }
 
 list > * {
   -webkit-box-align: center;
-  -webkit-transition: .15s background-color;
+  -webkit-transition: 150ms background-color;
   box-sizing: border-box;
   border-radius: 0;
   display: -webkit-box;
   height: 32px;
   border: none;
   margin: 0;
 }
 
 list:not([disabled]) > :hover {
   background-color: #e4ecf7;
@@ skipping 56 matching lines @@
 }
 
 list .deletable-item > :first-child {
   -webkit-box-align: center;
   -webkit-box-flex: 1;
   -webkit-padding-end: 5px;
   display: -webkit-box;
 }
 
 list .close-button {
-  -webkit-transition: .15s opacity;
+  -webkit-transition: 150ms opacity;
   background-color: transparent;
   /* TODO(stuartmorgan): Replace with real images once they are available. */
   background-image: url("../../../app/theme/close_bar.png");
   border: none;
   display: block;
   height: 16px;
   opacity: 1;
   width: 16px;
 }
 
@@ skipping 163 matching lines @@
 .displaytable > section > * {
   display: table-cell;
   vertical-align: baseline;
   border-bottom: 1px solid #eeeeee;
 }
 
 /* do not display a border after the last section in the table */
 .displaytable:not([searching='true']) > section:last-child > *  {
   border-bottom: none;
 }