Print Preview: Fixing pages textfield appearance when scrollbar is visible.

chrome/browser/resources/print_preview/print_preview.css

 html {
   height: 100%;
 }
 
 body {
   background: white;
   display: -webkit-box;
   height: 100%;
   margin: 0;
   overflow: hidden;
@@ skipping 593 matching lines @@
 .closing .extra {
   -webkit-transition: padding-top 100ms, height 100ms, opacity 200ms, background 300ms;
   height: 0 !important;
   opacity: 0;
   overflow: hidden;
   padding-top: 0;
   position: static;
   visibility: visible;
 }
 
-body #individual-pages {
- width: 81.5%;
+#print-pages-div {
+  -webkit-box-align: center;
+  -webkit-box-orient: horizontal;
+  display: -webkit-box;
+}
+
+#print-pages-div > label {
+  -webkit-box-flex: 1;
+  display: -webkit-box;
+}
+
+#individual-pages {
+  -webkit-box-flex: 1;
+  -webkit-margin-start: 5px;
+  display: block;
 }
 
 #print-summary {
   display: block;
   min-height: 30px;
 }
 
 #collate-option {
  -webkit-transition: opacity 200ms, -webkit-transform 200ms;
  -webkit-padding-start: 5px;
@@ skipping 112 matching lines @@
   -webkit-animation-delay: 300ms;
 }
 
 #two-sided-div {
   margin-top: 10px;
 }
 
 input[disabled] + label {
   color: gray;
 }