Revert "Remove spellcheck feedback."

chrome/renderer/spellchecker/spellcheck.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_RENDERER_SPELLCHECKER_SPELLCHECK_H_
 #define CHROME_RENDERER_SPELLCHECKER_SPELLCHECK_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 109 matching lines @@
   // Message handlers.
   void OnInit(IPC::PlatformFileForTransit bdict_file,
               const std::set<std::string>& custom_words,
               const std::string& language,
               bool auto_spell_correct);
   void OnCustomDictionaryChanged(
       const std::vector<std::string>& words_added,
       const std::vector<std::string>& words_removed);
   void OnEnableAutoSpellCorrect(bool enable);
   void OnEnableSpellCheck(bool enable);
+  void OnRequestDocumentMarkers();
 
 #if !defined (OS_MACOSX)
   // Posts delayed spellcheck task and clear it if any.
   // Takes ownership of |request|.
   void PostDelayedSpellCheckTask(SpellcheckRequest* request);
 
   // Performs spell checking from the request queue.
   void PerformSpellCheck(SpellcheckRequest* request);
 
   // The parameters of a pending background-spellchecking request. When WebKit
@@ skipping 12 matching lines @@
   // Remember state for auto spell correct.
   bool auto_spell_correct_turned_on_;
 
   // Remember state for spellchecking.
   bool spellcheck_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(SpellCheck);
 };
 
 #endif  // CHROME_RENDERER_SPELLCHECKER_SPELLCHECK_H_