remove memoryinstrumentation

Source/core/page/scrolling/ScrollingCoordinator.cpp

 /*
  * Copyright (C) 2011 Apple 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
@@ skipping 33 matching lines @@
 #include "ScrollbarThemeComposite.h"
 #include "WebScrollbarImpl.h"
 #include "WebScrollbarThemeGeometryNative.h"
 #include <public/Platform.h>
 #include <public/WebCompositorSupport.h>
 #include <public/WebLayerPositionConstraint.h>
 #include <public/WebScrollbar.h>
 #include <public/WebScrollbarLayer.h>
 #include <public/WebScrollbarThemeGeometry.h>
 #include <public/WebScrollbarThemePainter.h>
+#include <wtf/text/StringBuilder.h>
 
 using WebKit::WebLayer;
 using WebKit::WebLayerPositionConstraint;
 using WebKit::WebRect;
 using WebKit::WebScrollbarLayer;
 using WebKit::WebVector;
 
 
 namespace WebCore {
 
@@ skipping 555 matching lines @@
         stringBuilder.resize(stringBuilder.length() - 2);
     return stringBuilder.toString();
 }
 
 String ScrollingCoordinator::mainThreadScrollingReasonsAsText() const
 {
     return mainThreadScrollingReasonsAsText(mainThreadScrollingReasons());
 }
 
 } // namespace WebCore