Fold ScrollingCoordinatorChromium into ScrollingCoordinator and devirtualize

Source/WebCore/page/scrolling/chromium/ScrollingCoordinatorChromium.h

Index: Source/WebCore/page/scrolling/chromium/ScrollingCoordinatorChromium.h
diff --git a/Source/WebCore/page/scrolling/chromium/ScrollingCoordinatorChromium.h b/Source/WebCore/page/scrolling/chromium/ScrollingCoordinatorChromium.h
deleted file mode 100644
index 0fd03be383553c1a400db8be61a6130c55ef8ce4..0000000000000000000000000000000000000000
--- a/Source/WebCore/page/scrolling/chromium/ScrollingCoordinatorChromium.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * Copyright (C) 2012 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
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 ScrollingCoordinatorChromium_h
-#define ScrollingCoordinatorChromium_h
-
-#include "ScrollingCoordinator.h"
-
-namespace WebKit {
-class WebScrollbarLayer;
-class WebLayer;
-}
-
-namespace WebCore {
-
-class Scrollbar;
-
-class ScrollingCoordinatorChromium : public ScrollingCoordinator {
-public:
-    explicit ScrollingCoordinatorChromium(Page*);
-    virtual ~ScrollingCoordinatorChromium();
-
-    // Should be called whenever the given frame view has been laid out.
-    virtual void frameViewLayoutUpdated(FrameView*);
-
-    // Return whether this scrolling coordinator can keep fixed position layers fixed to their
-    // containers while scrolling.
-    virtual bool supportsFixedPositionLayers() const { return true; }
-
-    // Mark/unmark a layer as a container for fixed position layers.
-    virtual void setLayerIsContainerForFixedPositionLayers(GraphicsLayer*, bool);
-
-    // Attach/detach layer position to ancestor fixed position container.
-    virtual void updateLayerPositionConstraint(RenderLayer*);
-
-    // Should be called when a ScrollableArea is getting destroyed.
-    virtual void willDestroyScrollableArea(ScrollableArea*);
-
-    // Should be called whenever the scrollable layer for the given scroll area changes.
-    virtual void scrollableAreaScrollLayerDidChange(ScrollableArea*);
-
-    // Should be called whenever the scrollbar layer for the given scrollable area changes.
-    virtual void scrollableAreaScrollbarLayerDidChange(ScrollableArea*, ScrollbarOrientation);
-
-    // Should be called whenever touch handlers are registered, removed, or moved.
-    virtual void touchEventTargetRectsDidChange(const Document*) OVERRIDE;
-
-private:
-    virtual void recomputeWheelEventHandlerCountForFrameView(FrameView*);
-    virtual void setShouldUpdateScrollLayerPositionOnMainThread(MainThreadScrollingReasons);
-
-    static WebKit::WebLayer* scrollingWebLayerForScrollableArea(ScrollableArea*);
-
-    void setNonFastScrollableRegion(const Region&);
-    void setTouchEventTargetRects(const Vector<IntRect>&);
-    void setWheelEventHandlerCount(unsigned);
-
-    WebKit::WebScrollbarLayer* addWebScrollbarLayer(ScrollableArea*, ScrollbarOrientation, PassOwnPtr<WebKit::WebScrollbarLayer>);
-    WebKit::WebScrollbarLayer* getWebScrollbarLayer(ScrollableArea*, ScrollbarOrientation);
-    void removeWebScrollbarLayer(ScrollableArea*, ScrollbarOrientation);
-
-    typedef HashMap<ScrollableArea*, OwnPtr<WebKit::WebScrollbarLayer> > ScrollbarMap;
-    ScrollbarMap m_horizontalScrollbars;
-    ScrollbarMap m_verticalScrollbars;
-};
-
-} // namespace WebCore
-
-#endif // ScrollingCoordinatorChromium_h