Explicitly specify the vertical scrollbar in the MD settings CDB dialog

chrome/browser/resources/settings/clear_browsing_data_dialog/clear_browsing_data_dialog.html

Index: chrome/browser/resources/settings/clear_browsing_data_dialog/clear_browsing_data_dialog.html
diff --git a/chrome/browser/resources/settings/clear_browsing_data_dialog/clear_browsing_data_dialog.html b/chrome/browser/resources/settings/clear_browsing_data_dialog/clear_browsing_data_dialog.html
index aab329c73d5305f81163591a75dd61efb400ea11..b471c22d415e4c77058627b2533f04a74894126d 100644
--- a/chrome/browser/resources/settings/clear_browsing_data_dialog/clear_browsing_data_dialog.html
+++ b/chrome/browser/resources/settings/clear_browsing_data_dialog/clear_browsing_data_dialog.html
@@ -97,9 +97,10 @@
       }
 
       /* Cap the height on smaller screens to avoid unfavorable clipping. */
-      @media screen and (max-height: 714px) {
+      @media all and (max-height: 714px) {
         .body {
           max-height: 270px;
+          overflow-y: scroll;
         }
       }
     </style>