Scroll-bar browser test.

remoting/webapp/window_frame.css

Index: remoting/webapp/window_frame.css
diff --git a/remoting/webapp/window_frame.css b/remoting/webapp/window_frame.css
index a138921cd40caf9cb191188efed6d9840a2d4bf2..838d5c64c6f0b28d6405b573f6ae943eebb8d46e 100644
--- a/remoting/webapp/window_frame.css
+++ b/remoting/webapp/window_frame.css
@@ -81,7 +81,7 @@ html.apps-v2 body:not(.fullscreen) {
   position: relative;
 }
 
-html.apps-v2 #scroller {
+html.apps-v2 .window-body {
   height: calc(100% - 32px);  /* Allow space for the title-bar */
 }
 
@@ -144,10 +144,13 @@ body:not(.connected) .window-options {
  */
 
 html.apps-v2 body.fullscreen #scroller {
-  height: 100%;
   overflow: hidden;
 }
 
+html.apps-v2 body.fullscreen .window-body {
+  height: 100%;
+}
+
 body.fullscreen .title-bar {
   border: 1px solid #a6a6a6;
 }