Print Preview: Fixing printer list when no printer is installed.

chrome/browser/resources/print_preview.css

 html {
   height: 100%;
 }
 
 body {
   background: white;
   display: -webkit-box;
   height: 100%;
   margin: 0;
   overflow: hidden;
@@ skipping 198 matching lines @@
   border-radius: 3px;
   border: 1px solid #a0a0a0;
   cursor: default;
   font-size: 13px;
   font-weight: 400;
   margin: 0;
   padding: 4px 14px;
   text-shadow: 0 1px 0 rgba(255, 255, 255, .5);
 }
 
+button.loading {
+  cursor: progress;
+}
+
 button.default {
   -webkit-padding-end: 21px;
   -webkit-padding-start: 21px;
   border-color: #808080;
   border-width: 2px;
   font-weight: 600;
 }
 
 button.default:disabled {
   border-color: #a0a0a0;
@@ skipping 270 matching lines @@
   -webkit-padding-start: 14px;
   -webkit-user-select: none;
   background-image: url('./print_preview/black_arrow.png'),
                     -webkit-linear-gradient(#fafafa, #dcdcdc);
   background-position: 95% 55%, left top;
   background-repeat: no-repeat, repeat;
   border-radius: 3px;
   border: 1px solid #a0a0a0;
   font-size: 13px;
   font-weight: 400;
+  margin-bottom: 0;
+  margin-top: 0;
   outline: 0;
   padding-bottom: 3px;
   padding-top: 3px;
   text-shadow: 0 1px 0 rgba(255, 255, 255, .5);
   width: 100%;
 }
 
 html[dir='rtl'] select {
   background-position: 5% 55%, right top;
 }
@@ skipping 197 matching lines @@
   -webkit-animation-delay: 300ms;
 }
 
 #two-sided-div {
   margin-top: 10px;
 }
 
 input[disabled] + label {
   color: gray;
 }