Remove FrameView::containsScrollableArea

Source/core/page/EventHandler.cpp

Index: Source/core/page/EventHandler.cpp
diff --git a/Source/core/page/EventHandler.cpp b/Source/core/page/EventHandler.cpp
index 1fd074f6935f5f4302910f7571328a41826fd23b..15cfe353bcb4d7dff3d8f24688c96e073307d4fb 100644
--- a/Source/core/page/EventHandler.cpp
+++ b/Source/core/page/EventHandler.cpp
@@ -1450,13 +1450,9 @@ static RenderLayer* layerForNode(Node* node)
 
 ScrollableArea* EventHandler::associatedScrollableArea(const RenderLayer* layer) const
 {
-    ScrollableArea* layerScrollableArea = layer->scrollableArea();
-    if (!layerScrollableArea)
-        return 0;
-
-    if (FrameView* frameView = m_frame->view()) {
-        if (frameView->containsScrollableArea(layerScrollableArea))
-            return layerScrollableArea;
+    if (RenderLayerScrollableArea* scrollableArea = layer->scrollableArea()) {
+        if (scrollableArea->scrollsOverflow())
+            return scrollableArea;
     }
 
     return 0;