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

chrome/browser/resources/options/language_options.css

 .language-options {
   display: -webkit-box;
   margin: 10px 0;
 }
 
 .language-options-lower-left button,
 .language-options-right button {
   min-width: 70px;
 }
 
@@ skipping 147 matching lines @@
   padding: 7px 15px;
   white-space: nowrap;
   display: table;
   /* Set the height and margin so that the element does not use any vertical
     space */
   height: 16px;
   margin: -44px auto 12px auto;
   font-weight: bold;
   opacity: 0;
   pointer-events: none;
-  -webkit-transition: opacity .15s;
+  -webkit-transition: opacity 150ms;
   z-index: 1;
   color: black;
 }
 
 #notification > * {
   display: table-cell;
   max-width: 500px;
   overflow: hidden;
   text-overflow: ellipsis;
 }
@@ skipping 39 matching lines @@
 
 button[disabled].text-button,
 button[disabled].text-button:active,
 button[disabled].text-button:focus,
 button[disabled].text-button:hover {
   -webkit-box-shadow: none;
   background: transparent none;
   border-color: transparent;
   color: #AAA;
 }