Add //ui/* to "gn check"

ui/events/ozone/layout/stub/stub_keyboard_layout_engine.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/events/ozone/layout/stub/stub_keyboard_layout_engine.h"
 
 #include <algorithm>
 
 #include "base/strings/string16.h"
-#include "ui/events/event.h"
 #include "ui/events/keycodes/dom/dom_code.h"
 #include "ui/events/keycodes/dom/dom_key.h"
 #include "ui/events/keycodes/keyboard_code_conversion.h"
 #include "ui/events/ozone/layout/layout_util.h"
 
 namespace ui {
 
 StubKeyboardLayoutEngine::StubKeyboardLayoutEngine() {
 }
 
@@ skipping 18 matching lines @@
 }
 
 bool StubKeyboardLayoutEngine::Lookup(DomCode dom_code,
                                       int flags,
                                       DomKey* out_dom_key,
                                       KeyboardCode* out_key_code) const {
   return DomCodeToUsLayoutDomKey(dom_code, flags, out_dom_key, out_key_code);
 }
 
 }  // namespace ui