Make MouseWheelEvent::UpdateForRootTransform() not scale the mouse wheel offset

ui/events/event.h

Index: ui/events/event.h
diff --git a/ui/events/event.h b/ui/events/event.h
index 70a269d967310083c0fc9e99ffc1a48a116f2874..6a27b0e91d8759ba158ff7a8b346da765924e97c 100644
--- a/ui/events/event.h
+++ b/ui/events/event.h
@@ -473,10 +473,6 @@ class EVENTS_EXPORT MouseWheelEvent : public MouseEvent {
   int y_offset() const { return offset_.y(); }
   const gfx::Vector2d& offset() const { return offset_; }
 
-  // Overridden from LocatedEvent.
-  void UpdateForRootTransform(
-      const gfx::Transform& inverted_root_transform) override;
-
  private:
   gfx::Vector2d offset_;
 };