Fix visible position calculation in accessible setSelection

third_party/WebKit/Source/core/editing/EditingUtilities.h

 /*
  * Copyright (C) 2004, 2006, 2008 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 255 matching lines @@
 // describes what this function returns, since it returns a position before
 // specified position due by canonicalization.
 CORE_EXPORT VisiblePosition firstEditableVisiblePositionAfterPositionInRoot(const Position&, ContainerNode&);
 CORE_EXPORT VisiblePositionInFlatTree firstEditableVisiblePositionAfterPositionInRoot(const PositionInFlatTree&, ContainerNode&);
 // TODO(yosin) We should rename
 // |lastEditableVisiblePositionBeforePositionInRoot()| to a better name which
 // describes what this function returns, since it returns a position after
 // specified position due by canonicalization.
 CORE_EXPORT VisiblePosition lastEditableVisiblePositionBeforePositionInRoot(const Position&, ContainerNode&);
 CORE_EXPORT VisiblePositionInFlatTree lastEditableVisiblePositionBeforePositionInRoot(const PositionInFlatTree&, ContainerNode&);
-VisiblePosition visiblePositionBeforeNode(Node&);
+CORE_EXPORT VisiblePosition visiblePositionBeforeNode(Node&);
 VisiblePosition visiblePositionAfterNode(Node&);
 
 bool lineBreakExistsAtVisiblePosition(const VisiblePosition&);
 
 int comparePositions(const VisiblePosition&, const VisiblePosition&);
 
-int indexForVisiblePosition(const VisiblePosition&, ContainerNode*& scope);
+CORE_EXPORT int indexForVisiblePosition(const VisiblePosition&, ContainerNode*& scope);
 EphemeralRange makeRange(const VisiblePosition&, const VisiblePosition&);
 EphemeralRange normalizeRange(const EphemeralRange&);
 EphemeralRangeInFlatTree normalizeRange(const EphemeralRangeInFlatTree&);
 CORE_EXPORT VisiblePosition visiblePositionForIndex(int index, ContainerNode* scope);
 
 // -------------------------------------------------------------------------
 // HTMLElement
 // -------------------------------------------------------------------------
 
 // Functions returning HTMLElement
@@ skipping 61 matching lines @@
 // -------------------------------------------------------------------------
 
 // Functions dispatch InputEvent
 DispatchEventResult dispatchBeforeInputInsertText(EventTarget*, const String& data);
 DispatchEventResult dispatchBeforeInputFromComposition(EventTarget*, InputEvent::InputType, const String& data, InputEvent::EventCancelable);
 DispatchEventResult dispatchBeforeInputEditorCommand(EventTarget*, InputEvent::InputType, const String& data, const RangeVector*);
 
 } // namespace blink
 
 #endif