update-w3c-deps import using blink cc6d84edb87e89c363ab48dac8a983213b9dc02c:

third_party/WebKit/LayoutTests/imported/web-platform-tests/html/semantics/forms/constraints/support/validator.js

Index: third_party/WebKit/LayoutTests/imported/web-platform-tests/html/semantics/forms/constraints/support/validator.js
diff --git a/third_party/WebKit/LayoutTests/imported/web-platform-tests/html/semantics/forms/constraints/support/validator.js b/third_party/WebKit/LayoutTests/imported/web-platform-tests/html/semantics/forms/constraints/support/validator.js
index cd9d96404f59230327fd1b5aa1733f1723267354..e969ce460da77321ed7c622d7e1bf7014e005852 100644
--- a/third_party/WebKit/LayoutTests/imported/web-platform-tests/html/semantics/forms/constraints/support/validator.js
+++ b/third_party/WebKit/LayoutTests/imported/web-platform-tests/html/semantics/forms/constraints/support/validator.js
@@ -285,30 +285,10 @@ var validator = {
   },
 
   set_dirty: function(ctl) {
-    document.designMode = "on";
     ctl.focus();
     var old_value = ctl.value;
     ctl.value = "a";
     ctl.value = old_value;
-    if (
-      // See https://html.spec.whatwg.org/multipage/#input-type-attr-summary
-      // and https://html.spec.whatwg.org/multipage/#textFieldSelection
-      (
-        ctl.tagName === "INPUT" && (
-          ctl.type === "text" ||
-          ctl.type === "search" ||
-          ctl.type === "tel" ||
-          ctl.type === "url" ||
-          ctl.type === "password"
-        )
-      ) ||
-      ctl.tagName === "TEXTAREA"
-    ) {
-      ctl.value += "1";
-      ctl.setSelectionRange(ctl.value.length - 1, ctl.value.length);
-      document.execCommand("Delete");
-    }
-    document.designMode = "off";
   },
 
   pre_check: function(ctl, item) {