Print Preview: Fixing font anti-aliasing when hovering over buttons (Windows)

chrome/browser/resources/print_preview.css

 html {
   height: 100%;
 }
 
 body {
   background: white;
   display: -webkit-box;
   height: 100%;
   margin: 0;
   overflow: hidden;
@@ skipping 248 matching lines @@
 }
 
 button:disabled {
   color: rgba(0, 0, 0, .5);
 }
 
 button:not(:disabled):not(.disabled):hover {
   -webkit-box-shadow: inset 0 1px 2px white,
                       0 2px 4px rgba(0, 0, 0, .2);
   background: -webkit-linear-gradient(#fff, #e6e6e6);
-  text-shadow: 0 1px 0 rgba(255, 255, 255, 1);
+  /* Using opacity 0.99 instead of 1 because of http://crbug.com/68370 */
+  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.99);
 }
 
 button:not(:disabled):not(.disabled):active,
 button.active {
   -webkit-box-shadow: inset 0 1px 3px rgba(0, 0, 0, .3);
   background: -webkit-linear-gradient(#f0f0f0, #bebebe);
   border-color: #808080;
   position: relative;
   text-shadow: 0 1px 0 rgba(255, 255, 255, .25);
 }
@@ skipping 261 matching lines @@
 select.disabled {
   background-image: url('./print_preview/gray_arrow.png'),
                     -webkit-linear-gradient(#fafafa, #dcdcdc);
 }
 
 select:not(:disabled):not(.disabled):hover {
   -webkit-box-shadow: inset 0 1px 2px white,
                       0 2px 4px rgba(0, 0, 0, .2);
   background-image: url('./print_preview/black_arrow.png'),
                     -webkit-linear-gradient(#fff, #e6e6e6);
-  text-shadow: 0 1px 0 rgba(255, 255, 255, 1);
+  /* Using opacity 0.99 instead of 1 because of http://crbug.com/68370 */
+  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.99);
 }
 
 label {
   -webkit-user-select: none;
   cursor: default;
 }
 
 button:focus,
 button.default:focus,
 select:focus,
@@ skipping 153 matching lines @@
   -webkit-animation-delay: 300ms;
 }
 
 #two-sided-div {
   margin-top: 10px;
 }
 
 input[disabled] + label {
   color: gray;
 }