Remove ScrollableArea and Scrollbar

sky/engine/core/frame/FrameView.cpp

Index: sky/engine/core/frame/FrameView.cpp
diff --git a/sky/engine/core/frame/FrameView.cpp b/sky/engine/core/frame/FrameView.cpp
index 8883ffac5b4cb7b050ba51be755f1e29fe3caf0e..d9fce728eda4182a8e9d3910bfe19f0ac13723a8 100644
--- a/sky/engine/core/frame/FrameView.cpp
+++ b/sky/engine/core/frame/FrameView.cpp
@@ -52,8 +52,6 @@
 #include "sky/engine/platform/fonts/FontCache.h"
 #include "sky/engine/platform/geometry/FloatRect.h"
 #include "sky/engine/platform/graphics/GraphicsContext.h"
-#include "sky/engine/platform/scroll/ScrollAnimator.h"
-#include "sky/engine/platform/scroll/Scrollbar.h"
 #include "sky/engine/platform/text/TextStream.h"
 #include "sky/engine/wtf/CurrentTime.h"
 #include "sky/engine/wtf/TemporaryChange.h"
@@ -714,9 +712,6 @@ void FrameView::paintContents(GraphicsContext* p, const IntRect& rect)
 
     rootLayer->paint(p, rect, renderer);
 
-    if (rootLayer->containsDirtyOverlayScrollbars())
-        rootLayer->paintOverlayScrollbars(p, rect, renderer);
-
     m_isPainting = false;
     m_lastPaintTime = currentTime();
 
@@ -810,21 +805,6 @@ IntPoint FrameView::convertToRenderer(const RenderObject& renderer, const IntPoi
     return roundedIntPoint(renderer.absoluteToLocal(viewPoint, UseTransforms));
 }
 
-void FrameView::addScrollableArea(ScrollableArea* scrollableArea)
-{
-    ASSERT(scrollableArea);
-    if (!m_scrollableAreas)
-        m_scrollableAreas = adoptPtr(new ScrollableAreaSet);
-    m_scrollableAreas->add(scrollableArea);
-}
-
-void FrameView::removeScrollableArea(ScrollableArea* scrollableArea)
-{
-    if (!m_scrollableAreas)
-        return;
-    m_scrollableAreas->remove(scrollableArea);
-}
-
 bool FrameView::isVerticalDocument() const
 {
     // FIXME(sky): Remove