Move ScrollbarManager from core to platform and use as Scrollbar parent

third_party/WebKit/Source/platform/scroll/Scrollbar.h

 /*
  * Copyright (C) 2004, 2006 Apple Computer, Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef Scrollbar_h
 #define Scrollbar_h
 
-#include "platform/FrameViewBase.h"
 #include "platform/Timer.h"
 #include "platform/graphics/paint/DisplayItem.h"
 #include "platform/heap/Handle.h"
 #include "platform/scroll/ScrollTypes.h"
+#include "platform/scroll/ScrollbarManager.h"
 #include "platform/scroll/ScrollbarThemeClient.h"
 #include "platform/wtf/MathExtras.h"
 
 namespace blink {
 
 class CullRect;
 class GraphicsContext;
 class IntRect;
 class PlatformChromeClient;
 class ScrollableArea;
@@ skipping 24 matching lines @@
   ~Scrollbar() override;
 
   // ScrollbarThemeClient implementation.
   int X() const override { return frame_rect_.X(); }
   int Y() const override { return frame_rect_.Y(); }
   int Width() const override { return frame_rect_.Width(); }
   int Height() const override { return frame_rect_.Height(); }
   IntSize Size() const override { return frame_rect_.Size(); }
   IntPoint Location() const override { return frame_rect_.Location(); }
 
-  virtual void SetParent(FrameViewBase* parent) { parent_ = parent; }
-  FrameViewBase* Parent() const { return parent_; }
+  virtual void SetParent(ScrollbarManager* parent) { parent_ = parent; }
+  ScrollbarManager* Parent() const { return parent_; }
 
   void SetFrameRect(const IntRect&);
   IntRect FrameRect() const override { return frame_rect_; }
 
   ScrollbarOverlayColorTheme GetScrollbarOverlayColorTheme() const override;
   void GetTickmarks(Vector<IntRect>&) const override;
   bool IsScrollableAreaActive() const override;
 
   IntPoint ConvertFromRootFrame(
       const IntPoint& point_in_root_frame) const override;
@@ skipping 155 matching lines @@
   }
 
   float ScrollableAreaCurrentPos() const;
   float ScrollableAreaTargetPos() const;
   bool ThumbWillBeUnderMouse() const;
 
   int theme_scrollbar_thickness_;
   bool track_needs_repaint_;
   bool thumb_needs_repaint_;
   LayoutRect visual_rect_;
-  Member<FrameViewBase> parent_;
+  Member<ScrollbarManager> parent_;
   IntRect frame_rect_;
 };
 
 }  // namespace blink
 
 #endif  // Scrollbar_h