FBTF: Remove unneeded #includes of <string> and <vector> from src/app and src/base.

base/i18n/word_iterator.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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 BASE_I18N_WORD_ITERATOR_H_
 #define BASE_I18N_WORD_ITERATOR_H_
 #pragma once
 
-#include <string>
 #include <vector>
 
 #include "unicode/ubrk.h"
 #include "unicode/uchar.h"
 
 #include "base/basictypes.h"
 #include "base/string16.h"
 
 // The WordIterator class iterates through the words and word breaks
 // in a string.  (In the string " foo bar! ", the word breaks are at the
@@ skipping 61 matching lines @@
   // The breaking style (word/line).
   BreakType break_type_;
 
   // Previous and current iterator positions.
   size_t prev_, pos_;
 
   DISALLOW_COPY_AND_ASSIGN(WordIterator);
 };
 
 #endif  // BASE_I18N_WORD_ITERATOR_H__