Remove scrollbar styling, which provokes a WebKit/Chrome rendering issue.

remoting/webapp/main.css

 /* Copyright (c) 2012 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,body,div,span,applet,object,iframe,
 h1,h2,h3,h4,h5,h6,p,blockquote,pre,
 a,abbr,acronym,address,big,cite,code,
 del,dfn,em,font,img,ins,kbd,q,s,samp,
 small,strike,strong,sub,sup,tt,var,
@@ skipping 185 matching lines @@
     padding:30px 42px;
     width: 500px;
     height: auto;
     overflow: hidden;
     z-index: 100;
     opacity: 0.0;
     -webkit-transform: scale(1.05);
     -webkit-transition: all 0.218s;
 }
 
-::-webkit-scrollbar {
-    width: 16px;
-    height: 16px;
-}
-
-::-webkit-scrollbar-button {
-    height: 0px;
-    width: 0px;
-}
-
-::-webkit-scrollbar-thumb {
-    min-height: 28px;
-    padding-top:100px;
-    background-clip:padding-box;
-    background-color: rgba(0,0,0,0.2);
-    -webkit-box-shadow: inset 1px 1px 0px rgba(0,0,0,0.10),
-                        inset 0px -1px 0px  rgba(0,0,0,0.07);
-}
-
-::-webkit-scrollbar-thumb:hover {
-    background-color: rgba(0,0,0,0.4);
-    -webkit-box-shadow: inset 1px 1px 1px rgba(0,0,0,0.25);
-}
-
-::-webkit-scrollbar-thumb:active {
-    -webkit-box-shadow: inset 1px 1px 3px rgba(0,0,0,0.35);
-    background-color: rgba(0,0,0,0.5);
-}
-
-::-webkit-scrollbar-track:hover {
-  background-color:rgba(0,0,0,0.05);
-   -webkit-box-shadow: inset 1px 0px 0px  rgba(0,0,0,0.10);
-}
-
-::-webkit-scrollbar-track:active {
-  background-color:rgba(0,0,0,0.05);
-  -webkit-box-shadow: inset 1px 0px 0px  rgba(0,0,0,0.14),
-                      inset -1px -1px 0px  rgba(0,0,0,0.07);
-}
 .kd-button-share.disabled, .kd-button-share.disabled:hover, .kd-button-share.disabled:active {
     border-color:#29691d;
     background-color: #3d9400;
 }
 .kd-button-share:focus, .kd-button-share.focus{
     border-color:#29691d;
 }
 .kd-button-share {
     border-color: #29691d;
     background-color: #3d9400;
@@ skipping 362 matching lines @@
   line-height: 0;
 }
 
 #top-secondary {
   margin-top: 10px
 }
 
 * {
   box-sizing: border-box;
 }