Scaling scroll/fling events in multi-monitor setup

ui/base/events/event.h

Index: ui/base/events/event.h
diff --git a/ui/base/events/event.h b/ui/base/events/event.h
index 99b2eecc5a99e2d9f72dae63fae98b586988e079..49cb2b6bb4ee60c50e7a218ba42834cf3ada9d9c 100644
--- a/ui/base/events/event.h
+++ b/ui/base/events/event.h
@@ -632,6 +632,11 @@ class UI_EXPORT ScrollEvent : public MouseEvent {
               float x_offset,
               float y_offset);
 
+  // Scale the scroll event's offset value.
+  // This is useful in the multi-monitor setup where it needs to be scaled
+  // to provide a consistent user experience.
+  void Scale(const float factor);
+
   float x_offset() const { return x_offset_; }
   float y_offset() const { return y_offset_; }
   int finger_count() const { return finger_count_; }