Add VisibleUnits::startOfWordPosition

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

 /*
  * Copyright (C) 2004 Apple Computer, 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 138 matching lines @@
 nextPositionOf(const VisiblePositionInFlatTree&,
                EditingBoundaryCrossingRule = CanCrossEditingBoundary);
 CORE_EXPORT VisiblePosition
 previousPositionOf(const VisiblePosition&,
                    EditingBoundaryCrossingRule = CanCrossEditingBoundary);
 CORE_EXPORT VisiblePositionInFlatTree
 previousPositionOf(const VisiblePositionInFlatTree&,
                    EditingBoundaryCrossingRule = CanCrossEditingBoundary);
 
 // words
+// TODO(yoichio): Replace |startOfWord| to |startOfWordPosition| because
+// returned Position should be canonicalized with |previousBoundary()| by
+// TextItetator.
+CORE_EXPORT Position startOfWordPosition(const VisiblePosition&,
+                                         EWordSide = RightWordIfOnBoundary);
 CORE_EXPORT VisiblePosition startOfWord(const VisiblePosition&,
                                         EWordSide = RightWordIfOnBoundary);
+CORE_EXPORT PositionInFlatTree
+startOfWordPosition(const VisiblePositionInFlatTree&,
+                    EWordSide = RightWordIfOnBoundary);
 CORE_EXPORT VisiblePositionInFlatTree
 startOfWord(const VisiblePositionInFlatTree&,
             EWordSide = RightWordIfOnBoundary);
 // TODO(yoichio): Replace |endOfWord| to |endOfWordPosition| because returned
 // Position should be canonicalized with |nextBoundary()| by TextItetator.
 CORE_EXPORT Position endOfWordPosition(const VisiblePosition&,
                                        EWordSide = RightWordIfOnBoundary);
 CORE_EXPORT VisiblePosition endOfWord(const VisiblePosition&,
                                       EWordSide = RightWordIfOnBoundary);
 CORE_EXPORT PositionInFlatTree
@@ skipping 156 matching lines @@
 // Returns a hit-tested VisiblePosition for the given point in contents-space
 // coordinates.
 CORE_EXPORT VisiblePosition visiblePositionForContentsPoint(const IntPoint&,
                                                             LocalFrame*);
 
 CORE_EXPORT bool rendersInDifferentPosition(const Position&, const Position&);
 
 }  // namespace blink
 
 #endif  // VisibleUnits_h