Moving GraphicsContext and dependencies from core to platform.

Source/core/platform/ScrollAnimator.h

Index: Source/core/platform/ScrollAnimator.h
diff --git a/Source/core/platform/ScrollAnimator.h b/Source/core/platform/ScrollAnimator.h
deleted file mode 100644
index 0eab2f037a0ed9e966292a1fdeb22c439f7ce0d8..0000000000000000000000000000000000000000
--- a/Source/core/platform/ScrollAnimator.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * Copyright (c) 2010, 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
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * 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.
- */
-
-#ifndef ScrollAnimator_h
-#define ScrollAnimator_h
-
-#include "platform/PlatformWheelEvent.h"
-#include "platform/geometry/FloatSize.h"
-#include "platform/scroll/ScrollTypes.h"
-#include "wtf/FastAllocBase.h"
-#include "wtf/Forward.h"
-#include "wtf/UnusedParam.h"
-
-namespace WebCore {
-
-class FloatPoint;
-class ScrollableArea;
-class Scrollbar;
-
-class ScrollAnimator {
-    WTF_MAKE_FAST_ALLOCATED;
-public:
-    static PassOwnPtr<ScrollAnimator> create(ScrollableArea*);
-
-    virtual ~ScrollAnimator();
-
-    // Computes a scroll destination for the given parameters.  Returns false if
-    // already at the destination.  Otherwise, starts scrolling towards the
-    // destination and returns true.  Scrolling may be immediate or animated.
-    // The base class implementation always scrolls immediately, never animates.
-    virtual bool scroll(ScrollbarOrientation, ScrollGranularity, float step, float multiplier);
-
-    virtual void scrollToOffsetWithoutAnimation(const FloatPoint&);
-
-    ScrollableArea* scrollableArea() const { return m_scrollableArea; }
-
-    virtual void setIsActive() { }
-
-    virtual bool handleWheelEvent(const PlatformWheelEvent&);
-
-#if OS(MACOSX)
-    virtual void handleWheelEventPhase(PlatformWheelEventPhase) { }
-#endif
-
-    void setCurrentPosition(const FloatPoint&);
-    FloatPoint currentPosition() const;
-
-    virtual void cancelAnimations() { }
-    virtual void serviceScrollAnimations() { }
-
-    virtual void contentAreaWillPaint() const { }
-    virtual void mouseEnteredContentArea() const { }
-    virtual void mouseExitedContentArea() const { }
-    virtual void mouseMovedInContentArea() const { }
-    virtual void mouseEnteredScrollbar(Scrollbar*) const { }
-    virtual void mouseExitedScrollbar(Scrollbar*) const { }
-    virtual void willStartLiveResize() { }
-    virtual void contentsResized() const { }
-    virtual void willEndLiveResize() { }
-    virtual void contentAreaDidShow() const { }
-    virtual void contentAreaDidHide() const { }
-
-    virtual void finishCurrentScrollAnimations() { }
-
-    virtual void didAddVerticalScrollbar(Scrollbar*) { }
-    virtual void willRemoveVerticalScrollbar(Scrollbar*) { }
-    virtual void didAddHorizontalScrollbar(Scrollbar*) { }
-    virtual void willRemoveHorizontalScrollbar(Scrollbar*) { }
-
-    virtual bool shouldScrollbarParticipateInHitTesting(Scrollbar*) { return true; }
-
-    virtual void notifyContentAreaScrolled(const FloatSize& delta) { UNUSED_PARAM(delta); }
-
-    virtual bool isRubberBandInProgress() const { return false; }
-
-protected:
-    explicit ScrollAnimator(ScrollableArea*);
-
-    virtual void notifyPositionChanged(const FloatSize& delta);
-
-    ScrollableArea* m_scrollableArea;
-    float m_currentPosX; // We avoid using a FloatPoint in order to reduce
-    float m_currentPosY; // subclass code complexity.
-
-private:
-    float clampScrollPosition(ScrollbarOrientation, float);
-};
-
-} // namespace WebCore
-
-#endif // ScrollAnimator_h