Revert of Do not interchange MOUSE_MOVED and MOUSE_DRAGGED events in Widget

ui/views/widget/widget.h

Index: ui/views/widget/widget.h
diff --git a/ui/views/widget/widget.h b/ui/views/widget/widget.h
index e785d7b1bcf73e749e582a51c801432c8bd61593..96ab8b2ebff3aa936a9d74fc24f64a9d6e31e8b3 100644
--- a/ui/views/widget/widget.h
+++ b/ui/views/widget/widget.h
@@ -920,13 +920,17 @@
   // Whether native widget has been destroyed.
   bool native_widget_destroyed_;
 
+  // TODO(beng): Remove NativeWidgetGtk's dependence on these:
+  // If true, the mouse is currently down.
+  bool is_mouse_button_pressed_;
+
   // True if capture losses should be ignored.
   bool ignore_capture_loss_;
 
+  // TODO(beng): Remove NativeWidgetGtk's dependence on these:
   // The following are used to detect duplicate mouse move events and not
   // deliver them. Displaying a window may result in the system generating
   // duplicate move events even though the mouse hasn't moved.
-  // TODO(tdanderson): We may be able to remove these members.
   bool last_mouse_event_was_move_;
   gfx::Point last_mouse_event_position_;