Remove unused includes from core/platform .cpp files

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 15 matching lines @@
  * 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.
  */
 
 #include "config.h"
 #include "core/platform/ScrollableArea.h"
 
 #include "core/platform/PlatformMemoryInstrumentation.h"
-#include "core/platform/PlatformWheelEvent.h"

[pdr., 2013/05/24 03:33:41]

This might still be used.

[Timothy Loh, 2013/05/24 04:43:32]

Only needs a forward declaration, header has one.

 #include "core/platform/ScrollAnimator.h"
 #include "core/platform/ScrollbarTheme.h"
 #include "core/platform/graphics/FloatPoint.h"
-#include "core/platform/graphics/GraphicsContext.h"
 #include "core/platform/graphics/GraphicsLayer.h"
 #include <wtf/PassOwnPtr.h>
 
 #include "core/platform/chromium/TraceEvent.h"
 
 namespace WebCore {
 
 struct SameSizeAsScrollableArea {
     virtual ~SameSizeAsScrollableArea();
     void* pointer;
@@ skipping 355 matching lines @@
     return scrollPosition.shrunkTo(maximumScrollPosition()).expandedTo(minimumScrollPosition());
 }
 
 void ScrollableArea::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const
 {
     MemoryClassInfo info(memoryObjectInfo, this);
     info.addMember(m_scrollAnimator, "scrollAnimator");
 }
 
 } // namespace WebCore