Let IdleSpellCheckCallback take full control over SpellCheckRequester

third_party/WebKit/Source/core/editing/spellcheck/SpellChecker.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 66 matching lines @@
 
   void didEndEditingOnTextField(Element*);
   bool selectionStartHasMarkerFor(DocumentMarker::MarkerType,
                                   int from,
                                   int length) const;
   bool selectionStartHasSpellingMarkerFor(int from, int length) const;
   void updateMarkersForWordsAffectedByEditing(
       bool onlyHandleWordsContainingSelection);
   void cancelCheck();
 
-  // Exposed for testing only
+  // Exposed for testing and idle time spell checker
   SpellCheckRequester& spellCheckRequester() const {
     return *m_spellCheckRequester;
   }
 
   // The leak detector will report leaks should queued requests be posted
   // while it GCs repeatedly, as the requests keep their associated element
   // alive.
   //
   // Hence allow the leak detector to effectively stop the spell checker to
   // ensure leak reporting stability.
@@ skipping 19 matching lines @@
 
   void removeMarkers(const VisibleSelection&, DocumentMarker::MarkerTypes);
 
   void markMisspellingsInternal(const VisibleSelection&);
   void chunkAndMarkAllMisspellings(
       const TextCheckingParagraph& fullParagraphToCheck);
   void spellCheckOldSelection(const Position& oldSelectionStart,
                               const VisibleSelection& newAdjacentWords);
 
   Member<LocalFrame> m_frame;
+
+  // TODO(xiaochengh): Move it to IdleSpellCheckCallback after idle time spell
+  // checking reaches status=stable.
   const Member<SpellCheckRequester> m_spellCheckRequester;
 };
 
 }  // namespace blink
 
 #endif  // SpellChecker_h