Sync some HTML interfaces with the spec

Source/core/html/ValidityState.idl

Index: Source/core/html/ValidityState.idl
diff --git a/Source/core/html/ValidityState.idl b/Source/core/html/ValidityState.idl
index 35346150d4d886b3ad92edea47d045f7cd9948a3..5883d832ca190cd337bafa88c1330416101dc3f0 100644
--- a/Source/core/html/ValidityState.idl
+++ b/Source/core/html/ValidityState.idl
@@ -20,18 +20,20 @@
  *
  */
 
+// https://html.spec.whatwg.org/#validitystate
+
 [
     WillBeGarbageCollected
 ] interface ValidityState {
-    readonly attribute boolean         valueMissing;
-    readonly attribute boolean         typeMismatch;
-    readonly attribute boolean         patternMismatch;
-    readonly attribute boolean         tooLong;
-    readonly attribute boolean         tooShort;
-    readonly attribute boolean         rangeUnderflow;
-    readonly attribute boolean         rangeOverflow;
-    readonly attribute boolean         stepMismatch;
-    readonly attribute boolean         badInput;
-    readonly attribute boolean         customError;
-    readonly attribute boolean         valid;
+    readonly attribute boolean valueMissing;
+    readonly attribute boolean typeMismatch;
+    readonly attribute boolean patternMismatch;
+    readonly attribute boolean tooLong;
+    readonly attribute boolean tooShort;
+    readonly attribute boolean rangeUnderflow;
+    readonly attribute boolean rangeOverflow;
+    readonly attribute boolean stepMismatch;
+    readonly attribute boolean badInput;
+    readonly attribute boolean customError;
+    readonly attribute boolean valid;
 };