DOMUI: Use a styled button instead of an image for the password list show/hide

chrome/browser/resources/options/password_manager.css

Index: chrome/browser/resources/options/password_manager.css
diff --git a/chrome/browser/resources/options/password_manager.css b/chrome/browser/resources/options/password_manager.css
deleted file mode 100644
index 48ac0d9ab5190c08524d2f46ad7c3464d28e2272..0000000000000000000000000000000000000000
--- a/chrome/browser/resources/options/password_manager.css
+++ /dev/null
@@ -1,38 +0,0 @@
-#saved-passwords-list .url {
-  box-sizing: border-box;
-  width: 40%;
-}
-
-#saved-passwords-list .name {
-  -webkit-box-flex: 1;
-  width: 20%;
-}
-
-#saved-passwords-list .password {
-  -webkit-box-flex: 1;
-  position: relative;
-}
-
-#saved-passwords-list .password > span {
-  background: url('show_password.png');
-  cursor: pointer;
-  height: 18px;
-  position: absolute;
-  top: 5px;
-  width: 40px;
-}
-
-html[dir='ltr'] #saved-passwords-list .password > span {
-  right: 50px;
-}
-
-html[dir='rtl'] #saved-passwords-list .password > span {
-  left: 50px;
-}
-
-#saved-passwords-list .url,
-#saved-passwords-list .name,
-#password-exceptions-list .url {
-  overflow: hidden;
-  text-overflow: ellipsis;
-}