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

chrome/browser/resources/new_tab.css

 html {
   /* This is needed because of chrome://theme/css/new_tab.css */
   height: 100%;
 }
 
 body {
   margin: 0;
   height: 100%;
   overflow: auto;
   -webkit-user-select: none;
   cursor: default;
 }
 
 html[mode=app-launcher] {
   height: auto;
 }
 
 #main {
   box-sizing: border-box;
-  -webkit-transition: width .15s;
+  -webkit-transition: width 150ms;
   margin: 0 auto;
   min-height: 100%;
 }
 
 body.loading #main {
   /* We start out hidden to prevent glitchiness as the app and most visited
   data flows in. */
   visibility: hidden;
 }
 
@@ skipping 43 matching lines @@
   pointer-events: none;
 }
 
 /* Notification */
 
 #notification-container {
   position: fixed;
 }
 
 #notification {
-  -webkit-transition: opacity .15s;
+  -webkit-transition: opacity 150ms;
   position: relative;
   background-color: hsl(52, 100%, 80%);
   border: 1px solid rgb(211, 211, 211);
   border-radius: 6px;
   color: black;
   display: -webkit-box;
   font-weight: bold;
   margin: 2px auto;
   opacity: 0;
   padding: 7px 15px;
@@ skipping 255 matching lines @@
 .section {
   position: fixed;
   font-size: 92%;
 }
 
 body.noscroll {
   overflow: hidden;
 }
 
 html[anim=true][enable-section-animations=true] .section {
-  -webkit-transition: top .15s;
+  -webkit-transition: top 150ms;
 }
 
 #login-container {
   display: none;
   margin-top: 5px;
   position: fixed;
   text-align: end;
 }
 
 /* A section in menu mode doesn't display its contents at all. Instead it is
@@ skipping 32 matching lines @@
   top: -5px;
 }
 
 html[dir=rtl] .section > h2 > .disclosure {
   left: auto;
   right: -15px;
   -webkit-transform: rotate(180deg);
 }
 
 html[anim=true] .section > h2 > .disclosure {
-  -webkit-transition: -webkit-transform .15s;
+  -webkit-transition: -webkit-transform 150ms;
 }
 
 .section:not(.collapsed) > h2 > .disclosure {
   -webkit-transform: rotate(90deg);
 }
 
 .section > h2 .back {
   position: absolute;
   left: 0;
   top: 0.56em;
   width: 100%;
   height: 1.5em;
   z-index: 1;
 }
 
 .section > h2 span {
   -webkit-padding-end: 0.30em;
   position: relative;
   z-index: 2;
 }
 
 .section-close-button {
   -webkit-appearance: none;
-  -webkit-transition: opacity .15s;
+  -webkit-transition: opacity 150ms;
   background-color: transparent;
   background-image: url(chrome://theme/IDR_CLOSE_BAR);
   background-position: center center;
   background-repeat no-repeat;
   border: 0;
   height: 21px;
   margin-top: -10px;
   position: absolute;
   right: -21px;
   top: 50%;
@@ skipping 68 matching lines @@
 .maxiview.collapsing {
   opacity: 0;
 }
 
 .maxiview.collapsed {
   display: none;
   opacity: 0;
 }
 
 html[anim=true][enable-section-animations=true] .maxiview {
-  -webkit-transition: opacity .10s, top .15s;
+  -webkit-transition: opacity 100ms, top 150ms;
 }
 
 html[anim=true][enable-section-animations=true] .miniview {
-  -webkit-transition: opacity .15s;
+  -webkit-transition: opacity 150ms;
 }
 
 .section > .miniview {
   display: none;
   margin: 10px 0 30px;
   white-space: nowrap;
   overflow-x: hidden;
 }
 
 .section.collapsed > * {
@@ skipping 54 matching lines @@
   max-width: 15ex;
 }
 
 /* Ensure we have at least 10px horizontal marging. */
 @media (max-width: 712px) {
   #main {
     margin-left: 10px;
     margin-right: 10px;
   }
 }