Move OverscrollController to RenderWidgetHostViewAura

content/browser/renderer_host/render_widget_host_view_mac.mm

Index: content/browser/renderer_host/render_widget_host_view_mac.mm
diff --git a/content/browser/renderer_host/render_widget_host_view_mac.mm b/content/browser/renderer_host/render_widget_host_view_mac.mm
index 709e60ece16d83a59b91be3a576936de8b72ed0d..1165e88a66e1fead854c6de460a31d644dce61d3 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.mm
+++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
@@ -2054,8 +2054,12 @@ void RenderWidgetHostViewMac::UnlockMouse() {
     render_widget_host_->LostMouseLock();
 }
 
-void RenderWidgetHostViewMac::UnhandledWheelEvent(
-    const blink::WebMouseWheelEvent& event) {
+void RenderWidgetHostViewMac::WheelEventAck(
+    const blink::WebMouseWheelEvent& event,
+    InputEventAckState ack_result) {
+  if (ack_result == INPUT_EVENT_ACK_STATE_CONSUMED)
+    return;
+
   // Only record a wheel event as unhandled if JavaScript handlers got a chance
   // to see it (no-op wheel events are ignored by the event dispatcher)
   if (event.deltaX || event.deltaY)