Bug 1817719 - Make dom/promise buildable outside of a unified build environment r=andi

Depends on D170323

Differential Revision: https://phabricator.services.mozilla.com/D170324

dom/promise/PromiseNativeHandler.cpp

@@ -7,6 +7,8 @@
 #include "PromiseNativeHandler.h"
 #include "mozilla/dom/BindingUtils.h"
 #include "mozilla/dom/Promise.h"
+#include "mozilla/dom/DOMException.h"
+#include "mozilla/dom/DOMExceptionBinding.h"
 #include "nsISupportsImpl.h"
 
 namespace mozilla::dom {

dom/promise/moz.build

@@ -40,5 +40,3 @@ MOCHITEST_MANIFESTS += ["tests/mochitest.ini"]
 MOCHITEST_CHROME_MANIFESTS += ["tests/chrome.ini"]
 
 XPCSHELL_TESTS_MANIFESTS += ["tests/unit/xpcshell.ini"]
-
-REQUIRES_UNIFIED_BUILD = True