Convert the mouse exit only use for update UI hover state to mouse move

ui/aura/window_event_dispatcher.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/aura/window_event_dispatcher.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 159 matching lines @@
     if (details.dispatcher_destroyed)
       return;
   }
 }
 
 DispatchDetails WindowEventDispatcher::DispatchMouseExitAtPoint(
     Window* window,
     const gfx::Point& point) {
   ui::MouseEvent event(ui::ET_MOUSE_EXITED, point, point, ui::EventTimeForNow(),
                        ui::EF_NONE, ui::EF_NONE);
+  event.set_only_for_ui_hover_state(true);
   return DispatchMouseEnterOrExit(window, event, ui::ET_MOUSE_EXITED);
 }
 
 void WindowEventDispatcher::ProcessedTouchEvent(
     uint32_t unique_event_id,
     Window* window,
     ui::EventResult result,
     bool is_source_touch_event_set_non_blocking) {
   ui::GestureRecognizer::Gestures gestures =
       ui::GestureRecognizer::Get()->AckTouchEvent(
@@ skipping 751 matching lines @@
     ui::KeyEvent* event) {
   if (skip_ime_ || !host_->has_input_method() ||
       (event->flags() & ui::EF_IS_SYNTHESIZED))
     return DispatchDetails();
   DispatchDetails details = host_->GetInputMethod()->DispatchKeyEvent(event);
   event->StopPropagation();
   return details;
 }
 
 }  // namespace aura