Sync disabled state of number control regardless of appearance.

layout/forms/nsNumberControlFrame.cpp

@@ -430,6 +430,8 @@ nsNumberControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
     nsContentUtils::AddScriptRunner(focusJob);
   }
 
+  SyncDisabledState();
+
   if (StyleDisplay()->mAppearance == NS_THEME_TEXTFIELD) {
     // The author has elected to hide the spinner by setting this
     // -moz-appearance. We will reframe if it changes.
@@ -461,8 +463,6 @@ nsNumberControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
                             CSSPseudoElementType::mozNumberSpinDown,
                             spinBoxCI.mStyleContext);
 
-  SyncDisabledState();
-
   return rv;
 }