Index: content/browser/renderer_host/render_widget_host_impl.cc |
=================================================================== |
--- content/browser/renderer_host/render_widget_host_impl.cc (revision 180972) |
+++ content/browser/renderer_host/render_widget_host_impl.cc (working copy) |
@@ -941,6 +941,9 @@ |
if (ignore_input_events_ || process_->IgnoreInputEvents()) |
return; |
+ if (delegate_->PreHandleWheelEvent(wheel_event)) |
+ return; |
+ |
// If there's already a mouse wheel event waiting to be sent to the renderer, |
// add the new deltas to that event. Not doing so (e.g., by dropping the old |
// event, as for mouse moves) results in very slow scrolling on the Mac (on |