Build fix linux aura without USE_XI2_MT.

ui/events/x/touch_factory_x11.cc

 // Copyright (c) 2012 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/x/touch_factory_x11.h"
 
 #include <X11/cursorfont.h>
 #include <X11/extensions/XInput.h>
 #include <X11/extensions/XInput2.h>
 #include <X11/extensions/XIproto.h>
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/singleton.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "ui/events/event_switches.h"
 #include "ui/events/x/device_list_cache_x.h"
 #include "ui/gfx/x/x11_types.h"
 
+#if !defined(USE_XI2_MT)
+#include "ui/base/x/x11_util.h"
+#endif
+
 namespace ui {
 
 TouchFactory::TouchFactory()
     : pointer_device_lookup_(),
       touch_device_available_(false),
       touch_events_disabled_(false),
       touch_device_list_(),
       id_generator_(0) {
 #if defined(USE_AURA)
   if (!base::MessagePumpForUI::HasXInput2())
@@ skipping 211 matching lines @@
        iter != devices.end(); ++iter) {
     DCHECK(*iter < touch_device_lookup_.size());
     touch_device_lookup_[*iter] = true;
     touch_device_list_[*iter] = true;
   }
   touch_device_available_ = true;
   touch_events_disabled_ = false;
 }
 
 }  // namespace ui