Move DOMSelection.[cpp/h] from core/page to core/editing

Source/core/editing/DOMSelection.h

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2012 Google 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 39 matching lines @@
 
 class DOMSelection FINAL : public RefCountedWillBeGarbageCollectedFinalized<DOMSelection>, public ScriptWrappable, public DOMWindowProperty {
 public:
     static PassRefPtrWillBeRawPtr<DOMSelection> create(const TreeScope* treeScope)
     {
         return adoptRefWillBeNoop(new DOMSelection(treeScope));
     }
 
     void clearTreeScope();
 
-    // FIXME: Reorder API functions according to Selection.idl.
     // Safari Selection Object API
     // These methods return the valid equivalents of internal editing positions.
     Node* baseNode() const;
+    int baseOffset() const;
     Node* extentNode() const;
-    int baseOffset() const;
     int extentOffset() const;
     String type() const;
     void setBaseAndExtent(Node* baseNode, int baseOffset, Node* extentNode, int extentOffset, ExceptionState&);
     void modify(const String& alter, const String& direction, const String& granularity);
 
     // Mozilla Selection Object API
     // In Firefox, anchor/focus are the equal to the start/end of the selection,
     // but reflect the direction in which the selection was made by the user. That does
     // not mean that they are base/extent, since the base/extent don't reflect
     // expansion.
@@ skipping 36 matching lines @@
     bool isValidForPosition(Node*) const;
 
     void addConsoleError(const String& message);
 
     RawPtrWillBeMember<const TreeScope> m_treeScope;
 };
 
 } // namespace blink
 
 #endif // DOMSelection_h