Make sure the last selection gets spell checked when focusing different frame.

Source/core/editing/Editor.h

 /*
  * Copyright (C) 2006, 2007, 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 290 matching lines @@
     const VisibleSelection& mark() const; // Mark, to be used as emacs uses it.
     void setMark(const VisibleSelection&);
 
     void computeAndSetTypingStyle(StylePropertySet* , EditAction = EditActionUnspecified);
     void applyEditingStyleToBodyElement() const;
     void applyEditingStyleToElement(Element*) const;
 
     IntRect firstRectForRange(Range*) const;
 
     void respondToChangedSelection(const VisibleSelection& oldSelection, FrameSelection::SetSelectionOptions);
+    void respondToChangedFocusedOrActiveState(bool activeAndFocused);
     bool shouldChangeSelection(const VisibleSelection& oldSelection, const VisibleSelection& newSelection, EAffinity, bool stillSelecting) const;
 
     bool markedTextMatchesAreHighlighted() const;
     void setMarkedTextMatchesAreHighlighted(bool);
 
     void textFieldDidEndEditing(Element*);
     void textDidChangeInTextField(Element*);
     bool doTextFieldCommandFromEvent(Element*, KeyboardEvent*);
     WritingDirection baseWritingDirectionForSelectionStart() const;
 
@@ skipping 67 matching lines @@
 
 inline bool Editor::markedTextMatchesAreHighlighted() const
 {
     return m_areMarkedTextMatchesHighlighted;
 }
 
 
 } // namespace WebCore
 
 #endif // Editor_h