Adding momentum/overscroll to views:: ScrollViews

ui/views/cocoa/bridged_content_view.mm

Index: ui/views/cocoa/bridged_content_view.mm
diff --git a/ui/views/cocoa/bridged_content_view.mm b/ui/views/cocoa/bridged_content_view.mm
index 625cb43c9498ed66f63e6742c7595db5f00ed6b2..d9989ce572017384d6ad2df62d3d32c0bb600960 100644
--- a/ui/views/cocoa/bridged_content_view.mm
+++ b/ui/views/cocoa/bridged_content_view.mm
@@ -712,12 +712,16 @@ ui::KeyEvent GetCharacterEventFromNSEvent(NSEvent* event) {
   [self handleKeyEvent:&event];
 }
 
+- (BOOL)wantsScrollEventsForSwipeTrackingOnAxis:(NSEventGestureAxis)axis {
+  return YES;
+}
+
 - (void)scrollWheel:(NSEvent*)theEvent {
   if (!hostedView_)
     return;
 
-  ui::MouseWheelEvent event(theEvent);
-  hostedView_->GetWidget()->OnMouseEvent(&event);
+  ui::ScrollEvent event(theEvent);
+  hostedView_->GetWidget()->OnScrollEvent(&event);
 }
 
 ////////////////////////////////////////////////////////////////////////////////