Moving GraphicsContext and dependencies from core to platform.

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 18 matching lines @@
 
 #include "RuntimeEnabledFeatures.h"
 #include "core/dom/Document.h"
 #include "core/dom/Node.h"
 #include "core/dom/WheelController.h"
 #include "core/html/HTMLElement.h"
 #include "core/frame/Frame.h"
 #include "core/frame/FrameView.h"
 #include "core/page/Page.h"
 #include "core/page/Settings.h"
-#include "core/platform/ScrollAnimator.h"
-#include "core/platform/ScrollbarTheme.h"
 #include "core/platform/chromium/support/WebScrollbarImpl.h"
 #include "core/platform/chromium/support/WebScrollbarThemeGeometryNative.h"
-#include "core/platform/graphics/GraphicsLayer.h"
 #include "platform/TraceEvent.h"
 #include "platform/geometry/Region.h"
 #include "platform/geometry/TransformState.h"
+#include "platform/graphics/GraphicsLayer.h"
 #if OS(MACOSX)
-#include "core/platform/mac/ScrollAnimatorMac.h"
+#include "platform/mac/ScrollAnimatorMac.h"
 #endif
+#include "platform/scroll/ScrollAnimator.h"
+#include "platform/scroll/ScrollbarTheme.h"
 #include "core/plugins/PluginView.h"
 #include "core/rendering/CompositedLayerMapping.h"
 #include "core/rendering/RenderGeometryMap.h"
 #include "core/rendering/RenderLayerCompositor.h"
 #include "core/rendering/RenderView.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebCompositorSupport.h"
 #include "public/platform/WebLayerPositionConstraint.h"
 #include "public/platform/WebScrollbarLayer.h"
 #include "public/platform/WebScrollbarThemeGeometry.h"
@@ skipping 864 matching lines @@
 }
 
 bool ScrollingCoordinator::frameViewIsScrollableIsDirty() const
 {
     FrameView* frameView = m_page->mainFrame()->view();
     bool frameIsScrollable = frameView && frameView->isScrollable();
     return frameIsScrollable != m_wasFrameScrollable;
 }
 
 } // namespace WebCore