Bug 1491019 - Remove the XPCOM component registration for nsXULControllers; r=baku

Differential Revision: https://phabricator.services.mozilla.com/D5774

dom/html/HTMLInputElement.cpp

@@ -115,6 +115,7 @@
 #include "nsIMIMEInfo.h"
 #include "nsFrameSelection.h"
 #include "nsBaseCommandController.h"
+#include "nsXULControllers.h"
 
 // input type=date
 #include "js/Date.h"
@@ -123,8 +124,6 @@ NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(Input)
 
 // XXX align=left, hspace, vspace, border? other nav4 attrs
 
-static NS_DEFINE_CID(kXULControllersCID,  NS_XULCONTROLLERS_CID);
-
 namespace mozilla {
 namespace dom {
 
@@ -5798,10 +5797,9 @@ HTMLInputElement::GetControllers(ErrorResult& aRv)
   {
     if (!mControllers)
     {
-      nsresult rv;
-      mControllers = do_CreateInstance(kXULControllersCID, &rv);
-      if (NS_FAILED(rv)) {
-        aRv.Throw(rv);
+      mControllers = NS_NewXULControllers();
+      if (!mControllers) {
+        aRv.Throw(NS_ERROR_FAILURE);
         return nullptr;
       }