WebScrollbarThemeClientImpl should not be DisplayItemClient

third_party/WebKit/Source/platform/scroll/ScrollbarThemeOverlay.cpp

 /*
  * Copyright (C) 2011 Google 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
@@ skipping 10 matching lines @@
  * 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.
  */
 
 #include "platform/scroll/ScrollbarThemeOverlay.h"
 
 #include "platform/PlatformMouseEvent.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/paint/DrawingRecorder.h"
-#include "platform/scroll/ScrollbarThemeClient.h"
+#include "platform/scroll/Scrollbar.h"
 #include "platform/transforms/TransformationMatrix.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebRect.h"
 #include "public/platform/WebThemeEngine.h"
 #include "wtf/MathExtras.h"
 
 #include <algorithm>
 
 namespace blink {
 
@@ skipping 78 matching lines @@
     else
         rect.inflateY(-m_scrollbarMargin);
     return rect;
 }
 
 int ScrollbarThemeOverlay::thumbThickness(const ScrollbarThemeClient&)
 {
     return m_thumbThickness;
 }
 
-void ScrollbarThemeOverlay::paintThumb(GraphicsContext& context, const ScrollbarThemeClient& scrollbar, const IntRect& rect)
+void ScrollbarThemeOverlay::paintThumb(GraphicsContext& context, const Scrollbar& scrollbar, const IntRect& rect)
 {
     if (DrawingRecorder::useCachedDrawingIfPossible(context, scrollbar, DisplayItem::ScrollbarThumb))
         return;
 
     DrawingRecorder recorder(context, scrollbar, DisplayItem::ScrollbarThumb, rect);
 
     IntRect thumbRect = rect;
     if (scrollbar.orientation() == HorizontalScrollbar) {
         thumbRect.setHeight(thumbRect.height() - m_scrollbarMargin);
     } else {
@@ skipping 37 matching lines @@
         WebThemeEngine::ScrollbarStyle style = { 3, 3, 0x80808080 }; // default style
         if (Platform::current()->themeEngine()) {
             Platform::current()->themeEngine()->getOverlayScrollbarStyle(&style);
         }
         theme = new ScrollbarThemeOverlay(style.thumbThickness, style.scrollbarMargin, ScrollbarThemeOverlay::DisallowHitTest, Color(style.color));
     }
     return *theme;
 }
 
 } // namespace blink