Revert 98434 - Adding a Views scrollbar implementation.

views/controls/scrollbar/native_scroll_bar_wrapper.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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 VIEWS_CONTROLS_NATIVE_SCROLL_BAR_WRAPPER_H_
 #define VIEWS_CONTROLS_NATIVE_SCROLL_BAR_WRAPPER_H_
 #pragma once
 
 namespace views {
 
 class NativeScrollBar;
 class View;
 
 // A specialization of NativeControlWrapper that hosts a platform-native
 // scroll bar.
-class VIEWS_EXPORT NativeScrollBarWrapper {
+class NativeScrollBarWrapper {
  public:
   virtual ~NativeScrollBarWrapper() {}
 
   // Updates the scroll bar appearance given a viewport size, content size and
   // current position.
   virtual void Update(int viewport_size, int content_size, int current_pos) = 0;
 
   // Retrieves the views::View that hosts the native control.
   virtual View* GetView() = 0;
 
   // Returns the position of the scrollbar.
   virtual int GetPosition() const = 0;
 
   // Creates an appropriate NativeScrollBarWrapper for the platform.
   static NativeScrollBarWrapper* CreateWrapper(NativeScrollBar* button);
 
   // Returns the system sizes of vertical/horizontal scroll bars.
   static int GetVerticalScrollBarWidth();
   static int GetHorizontalScrollBarHeight();
 };
 
 }  // namespace views
 
 #endif  // VIEWS_CONTROLS_NATIVE_SCROLL_BAR_WRAPPER_H_