Remove KEYBOARD_EXPORT.

ui/keyboard/keyboard_controller.h

 // Copyright (c) 2013 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_KEYBOARD_CONTROLLER_H_
 #define UI_KEYBOARD_KEYBOARD_CONTROLLER_H_
 
 #include <memory>
 
 #include "base/event_types.h"
@@ skipping 30 matching lines @@
   // Full width virtual keyboard. The virtual keyboard window has the same width
   // as the display.
   FULL_WIDTH,
   // Floating virtual keyboard. The virtual keyboard window has customizable
   // width and is draggable.
   FLOATING,
 };
 
 // Provides control of the virtual keyboard, including providing a container
 // and controlling visibility.
-class KEYBOARD_EXPORT KeyboardController : public ui::InputMethodObserver,
+class  KeyboardController : public ui::InputMethodObserver,
                                            public aura::WindowObserver {
  public:
   // Different ways to hide the keyboard.
   enum HideReason {
     // System initiated.
     HIDE_REASON_AUTOMATIC,
     // User initiated.
     HIDE_REASON_MANUAL,
   };
 
@@ skipping 125 matching lines @@
   static KeyboardController* instance_;
 
   base::WeakPtrFactory<KeyboardController> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(KeyboardController);
 };
 
 }  // namespace keyboard
 
 #endif  // UI_KEYBOARD_KEYBOARD_CONTROLLER_H_