Remove KEYBOARD_EXPORT.

ui/keyboard/scoped_keyboard_disabler.h

 // Copyright 2016 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 UI_KEYBOARD_SCOPED_KEYBOARD_DISABLER_H_
 #define UI_KEYBOARD_SCOPED_KEYBOARD_DISABLER_H_
 
 #include "base/macros.h"
 #include "ui/keyboard/keyboard_export.h"
 
 namespace keyboard {
 
 // Saves the force disable keyboard state, and restores the state when going out
 // of scope.
-class KEYBOARD_EXPORT ScopedKeyboardDisabler {
+class  ScopedKeyboardDisabler {
  public:
   ScopedKeyboardDisabler();
   ~ScopedKeyboardDisabler();
 
   // Blocks the keyboard from showing up. This should only be used for cases
   // where the focus needs to be passed around without poping up the keyboard.
   // It needs to be turned off or this object needs to go out of scope when done
   // with, otherwise the keyboard will not pop up again.
   void SetForceDisableVirtualKeyboard(bool disable);
 
   // Return true if keyboard has been blocked from showing up.
   static bool GetForceDisableVirtualKeyboard();
 
  private:
   const bool force_disable_keyboard_state_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedKeyboardDisabler);
 };
 
 }  // namespace keyboard
 
 #endif  // UI_KEYBOARD_SCOPED_KEYBOARD_DISABLER_H_