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

ui/events/blink/web_input_event.cc

 // Copyright 2016 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/events/blink/web_input_event.h"
 
 #include "ui/events/base_event_utils.h"
 #include "ui/events/blink/blink_event_util.h"
 #include "ui/events/blink/blink_features.h"
 #include "ui/events/event.h"
@@ skipping 382 matching lines @@
       // pointer crosses through. These occur when middle clicking.
       // Change these into mouse move events.
       const base::NativeEvent& native_event = event.native_event();
 
       if (native_event && native_event->type == LeaveNotify &&
           native_event->xcrossing.detail == NotifyVirtual) {
         type = blink::WebInputEvent::kMouseMove;
         break;
       }
 #endif
-      static bool s_send_leave =
-          base::FeatureList::IsEnabled(features::kSendMouseLeaveEvents);
+      bool s_send_leave =
+          base::FeatureList::IsEnabled(features::kSendMouseLeaveEvents);  // &&
+      // !event.only_for_ui_hover_state();
       type = s_send_leave ? blink::WebInputEvent::kMouseLeave
                           : blink::WebInputEvent::kMouseMove;
       break;
     }
     case ET_MOUSE_ENTERED:
     case ET_MOUSE_MOVED:
     case ET_MOUSE_DRAGGED:
       type = blink::WebInputEvent::kMouseMove;
       break;
     default:
@@ skipping 62 matching lines @@
   webkit_event.tilt_x = roundf(event.pointer_details().tilt_x);
   webkit_event.tilt_y = roundf(event.pointer_details().tilt_y);
   webkit_event.force = event.pointer_details().force;
   webkit_event.pointer_type =
       EventPointerTypeToWebPointerType(event.pointer_details().pointer_type);
 
   return webkit_event;
 }
 
 }  // namespace ui