Reset word iterators when changing the spellchecker language.

chrome/renderer/spellchecker/spellcheck_worditerator.h

 // Copyright (c) 2011 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.
 
 // Defines an iterator class that enumerates words supported by our spellchecker
 // from multi-language text. This class is used for filtering out characters
 // not supported by our spellchecker.
 
 #ifndef CHROME_RENDERER_SPELLCHECKER_SPELLCHECK_WORDITERATOR_H_
 #define CHROME_RENDERER_SPELLCHECKER_SPELLCHECK_WORDITERATOR_H_
@@ skipping 121 matching lines @@
   // changes the input text, such as string16::replace(), we need to use
   // 'word_start' and 'word_length' as listed in the following snippet.
   //
   //   while(iterator.GetNextWord(&word, &offset, &length))
   //     text.replace(offset, length, word);
   //
   bool GetNextWord(string16* word_string,
                    int* word_start,
                    int* word_length);
 
+  // Releases all the resources attached to this object.
+  void Reset();
+
  private:
-  // Releases all the resources attached to this object.
-  void Close();
-
   // Normalizes a non-terminated string returned from an ICU word-break
   // iterator. A word returned from an ICU break iterator may include characters
   // not supported by our spellchecker, e.g. ligatures, combining/ characters,
   // full-width letters, etc. This function replaces such characters with
   // alternative characters supported by our spellchecker. This function also
   // calls SpellcheckWordIterator::OutputChar() to filter out false-positive
   // characters.
   bool Normalize(int input_start,
                  int input_length,
                  string16* output_string) const;
@@ skipping 12 matching lines @@
   const SpellcheckCharAttribute* attribute_;
 
   // The ICU break iterator.
   UBreakIterator* iterator_;
 
   DISALLOW_COPY_AND_ASSIGN(SpellcheckWordIterator);
 };
 
 #endif  // CHROME_RENDERER_SPELLCHECKER_SPELLCHECK_WORDITERATOR_H_