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

third_party/WebKit/Source/core/input/EventHandler.h

 /*
  * Copyright (C) 2006, 2007, 2009, 2010, 2011 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 79 matching lines @@
   void UpdateSelectionForMouseDrag();
   void StartMiddleClickAutoscroll(LayoutObject*);
 
   // TODO(nzolghadr): Some of the APIs in this class only forward the action
   // to the corresponding Manager class. We need to investigate whether it is
   // better to expose the manager instance itself later or can the access to
   // those APIs be more limited or removed.
 
   void StopAutoscroll();
 
-  void DispatchFakeMouseMoveEventSoon();
+  void DispatchFakeMouseMoveEventSoon(MouseEventManager::FakeMouseMoveReason);
   void DispatchFakeMouseMoveEventSoonInQuad(const FloatQuad&);
 
   HitTestResult HitTestResultAtPoint(
       const LayoutPoint&,
       HitTestRequest::HitTestRequestType hit_type = HitTestRequest::kReadOnly |
                                                     HitTestRequest::kActive,
       const LayoutSize& padding = LayoutSize());
 
   bool MousePressed() const { return mouse_event_manager_->MousePressed(); }
   bool IsMousePositionUnknown() const {
     return mouse_event_manager_->IsMousePositionUnknown();
   }
   void ClearMouseEventManager() const { mouse_event_manager_->Clear(); }
   void SetCapturingMouseEventsNode(
       Node*);  // A caller is responsible for resetting capturing node to 0.
 
   WebInputEventResult UpdateDragAndDrop(const WebMouseEvent&, DataTransfer*);
   void CancelDragAndDrop(const WebMouseEvent&, DataTransfer*);
   WebInputEventResult PerformDragAndDrop(const WebMouseEvent&, DataTransfer*);
   void UpdateDragStateAfterEditDragIfNeeded(Element* root_editable_element);
 
   void ScheduleHoverStateUpdate();
   void ScheduleCursorUpdate();
 
   // Return whether a mouse cursor update is currently pending.  Used for
   // testing.
   bool CursorUpdatePending();
 
+  // Return whether sending a fake mouse move is currently pending.  Used for
+  // testing.
+  bool FakeMouseMovePending() const;
+
   void SetResizingFrameSet(HTMLFrameSetElement*);
 
   void ResizeScrollableAreaDestroyed();
 
   IntPoint LastKnownMousePosition() const;
 
   IntPoint DragDataTransferLocationForTesting();
 
   // Performs a logical scroll that chains, crossing frames, starting from
   // the given node or a reasonable default (focus/last clicked).
@@ skipping 249 matching lines @@
 
   // Set on GestureTapDown if the |pointerdown| event corresponding to the
   // triggering |touchstart| event was canceled. This suppresses mouse event
   // firing for the current gesture sequence (i.e. until next GestureTapDown).
   bool suppress_mouse_events_from_gestures_;
 };
 
 }  // namespace blink
 
 #endif  // EventHandler_h