Bug 1801380 - Don't call RecomputeDirectionality() if the element has dir=auto. r=emilio

Differential Revision: https://phabricator.services.mozilla.com/D162462

dom/html/HTMLInputElement.cpp

@@ -4485,8 +4485,8 @@ void HTMLInputElement::HandleTypeChange(FormControlType aNewType,
   // Changing type may affect directionality because of the special-case for
   // <input type=tel>, as specified in
   // https://html.spec.whatwg.org/multipage/dom.html#the-directionality
-  if (oldType == FormControlType::InputTel ||
-      mType == FormControlType::InputTel) {
+  if (!HasDirAuto() && (oldType == FormControlType::InputTel ||
+                        mType == FormControlType::InputTel)) {
     RecomputeDirectionality(this, aNotify);
   }
 

dom/html/crashtests/1801380.html

@@ -0,0 +1 @@
+<input dir="auto" type="tel">

dom/html/crashtests/crashtests.list

@@ -95,3 +95,4 @@ load 1724816.html
 load 1785933.html
 load 1787671.html
 load 1789475.html
+load 1801380.html