remove memoryinstrumentation

Source/core/platform/ScrollableArea.cpp

 /*
  * Copyright (c) 2010, Google Inc. All rights reserved.
  * Copyright (C) 2008, 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:
  * 
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 17 matching lines @@
  * (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 "config.h"
 #include "ScrollableArea.h"
 
 #include "GraphicsContext.h"
 #include "GraphicsLayer.h"
 #include "FloatPoint.h"
-#include "PlatformMemoryInstrumentation.h"
 #include "PlatformWheelEvent.h"
 #include "ScrollAnimator.h"
 #include "ScrollbarTheme.h"
 #include <wtf/PassOwnPtr.h>
 
 #include "TraceEvent.h"
 
 namespace WebCore {
 
 struct SameSizeAsScrollableArea {
@@ skipping 350 matching lines @@
                    scrollPosition().y(),
                    std::max(0, visibleWidth() + verticalScrollbarWidth),
                    std::max(0, visibleHeight() + horizontalScrollbarHeight));
 }
 
 IntPoint ScrollableArea::clampScrollPosition(const IntPoint& scrollPosition) const
 {
     return scrollPosition.shrunkTo(maximumScrollPosition()).expandedTo(minimumScrollPosition());
 }
 
-void ScrollableArea::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
-{
-    MemoryClassInfo info(memoryObjectInfo, this);
-    info.addMember(m_scrollAnimator, "scrollAnimator");
-}
-
 } // namespace WebCore