Add Autofill preview support for <select> input fields

Source/core/css/html.css

Index: Source/core/css/html.css
diff --git a/Source/core/css/html.css b/Source/core/css/html.css
index 0801e374e423379abc09d70b4098da3e9b2ee868..d68117959d5b31e7b2fd820f311d4999402f3fb6 100644
--- a/Source/core/css/html.css
+++ b/Source/core/css/html.css
@@ -695,7 +695,7 @@ input[type="file"] {
     text-align: start !important;
 }
 
-input:-webkit-autofill, textarea:-webkit-autofill {
+input:-webkit-autofill, textarea:-webkit-autofill, select:-webkit-autofill {
     background-color: #FAFFBD !important;
     background-image:none !important;
     color: #000000 !important;