Make WmShellMus use classic types for mus

ash/wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard_ozone.h

 // Copyright 2015 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.
 
 #ifndef ASH_WM_MAXIMIZE_MODE_SCOPED_DISABLE_INTERNAL_MOUSE_AND_KEYBOARD_OZONE_H_
 #define ASH_WM_MAXIMIZE_MODE_SCOPED_DISABLE_INTERNAL_MOUSE_AND_KEYBOARD_OZONE_H_
 
+#include "ash/ash_export.h"
 #include "ash/common/wm/maximize_mode/scoped_disable_internal_mouse_and_keyboard.h"
 #include "base/macros.h"
 
 namespace ash {
 
 // Disables the internal mouse and keyboard for the duration of the class'
 // lifetime.
-class ScopedDisableInternalMouseAndKeyboardOzone
+class ASH_EXPORT ScopedDisableInternalMouseAndKeyboardOzone
     : public ScopedDisableInternalMouseAndKeyboard {
  public:
   ScopedDisableInternalMouseAndKeyboardOzone();
   ~ScopedDisableInternalMouseAndKeyboardOzone() override;
 
  private:
   // If the touch pad is already disabled we ignore re-enabling it in the
   // destructor.
   bool should_ignore_touch_pad_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedDisableInternalMouseAndKeyboardOzone);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_MAXIMIZE_MODE_SCOPED_DISABLE_INTERNAL_MOUSE_AND_KEYBOARD_OZONE_H_