Add a flag to update hover effect when a layout is changed

third_party/WebKit/Source/core/testing/Internals.idl

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 248 matching lines @@
     [RaisesException] void forceFullRepaint(Document document);
 
     // Returns a list of draggable/non-draggable regions in the document.
     [RaisesException] ClientRectList draggableRegions(Document document);
     [RaisesException] ClientRectList nonDraggableRegions(Document document);
 
     // Returns a string with information about the mouse cursor used at the specified client location.
     DOMString getCurrentCursorInfo();
 
     readonly attribute boolean cursorUpdatePending;
+    readonly attribute boolean fakeMouseMovePending; 
 
     DOMString markerTextForListItem(Element element);
 
     SerializedScriptValue deserializeBuffer(ArrayBuffer buffer);
     ArrayBuffer serializeObject(SerializedScriptValue obj);
 
     [CallWith=ScriptState] any deserializeBufferContainingWasm(ArrayBuffer buffer);
     ArrayBuffer serializeWithInlineWasm(any obj);
 
 
@@ skipping 103 matching lines @@
     DOMString getProgrammaticScrollAnimationState(Node node);
 
     ClientRect visualRect(Node node);
 
     OriginTrialsTest originTrialsTest();
 
     void crash();
 
     void setIsLowEndDevice(boolean isLowEndDevice);
 };