Remove inclusion of RetainPtr.h in SimpleFontData.h

Source/platform/scroll/ScrollbarThemeMacOverlayAPI.mm

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #include "config.h"
 #include "platform/scroll/ScrollbarThemeMacOverlayAPI.h"
 
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/GraphicsContextStateSaver.h"
 #include "platform/graphics/paint/DrawingRecorder.h"
 #include "platform/mac/LocalCurrentGraphicsContext.h"
 #include "platform/mac/NSScrollerImpDetails.h"
 #include "platform/scroll/ScrollbarThemeClient.h"
+#include "wtf/RetainPtr.h"
 
 @interface WebCoreScrollbarObserver : NSObject {
     blink::ScrollbarThemeClient* _scrollbar;
     RetainPtr<ScrollbarPainter> _scrollbarPainter;
     BOOL _visible;
 }
 - (id)initWithScrollbar:(blink::ScrollbarThemeClient*)scrollbar painter:(ScrollbarPainter)painter;
 @end
 
 @implementation WebCoreScrollbarObserver
@@ skipping 204 matching lines @@
     return [painterForScrollbar(scrollbar) knobMinLength];
 }
 
 void ScrollbarThemeMacOverlayAPI::updateEnabledState(ScrollbarThemeClient* scrollbar)
 {
     [painterForScrollbar(scrollbar) setEnabled:scrollbar->enabled()];
 }
 
 } // namespace blink