Refactor wheel event handler registration in ScrollingCoordinator

Source/core/dom/WheelController.cpp

Index: Source/core/dom/WheelController.cpp
diff --git a/Source/core/dom/WheelController.cpp b/Source/core/dom/WheelController.cpp
index 85b3c473e34ff8ab52a1fabd8771d7c25c06d546..27d12af8d271e521de81439252cbdcf036399bd6 100644
--- a/Source/core/dom/WheelController.cpp
+++ b/Source/core/dom/WheelController.cpp
@@ -69,11 +69,7 @@ static void wheelEventHandlerCountChanged(Document& document)
     if (!scrollingCoordinator)
         return;
 
-    FrameView* frameView = document.view();
-    if (!frameView)
-        return;
-
-    scrollingCoordinator->frameViewWheelEventHandlerCountChanged(frameView);
+    scrollingCoordinator->updateHaveWheelEventHandlers();
 }
 
 void WheelController::didAddWheelEventHandler(Document& document)