mshtml: Use Gecko inner window in HTMLXMLHttpRequestFactory_create.

dlls/mshtml/tests/events.c

@@ -3304,10 +3304,8 @@ static void test_window_refs(IHTMLDocument2 *doc)
     IHTMLWindow2_Release(child);
 
     hres = IHTMLXMLHttpRequestFactory_create(xhr_factory, &xhr);
-    todo_wine
     ok(hres == S_OK, "create failed: %08lx\n", hres);
     IHTMLXMLHttpRequestFactory_Release(xhr_factory);
-    if(hres == S_OK) IHTMLXMLHttpRequest_Release(xhr);
 
     hres = IHTMLImageElementFactory_create(image_factory, vempty, vempty, &img_elem);
     ok(hres == S_OK, "create failed: %08lx\n", hres);

dlls/mshtml/xmlhttprequest.c

@@ -1686,10 +1686,7 @@ static HRESULT WINAPI HTMLXMLHttpRequestFactory_create(IHTMLXMLHttpRequestFactor
 
     TRACE("(%p)->(%p)\n", This, p);
 
-    if(!This->window->base.outer_window)
-        return E_FAIL;
-
-    nsxhr = create_nsxhr(This->window->base.outer_window->nswindow);
+    nsxhr = create_nsxhr(This->window->dom_window);
     if(!nsxhr)
         return E_FAIL;