Include ICU headers in a way that will also work with use_system_icu=1

chrome/renderer/spellchecker/spellcheck_worditerator.h

 // 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.
 
 // 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_
 #pragma once
 
 #include <string>
 
+#include "unicode/ubrk.h"
+#include "unicode/uscript.h"
+
 #include "base/basictypes.h"
 #include "base/string16.h"
-#include "third_party/icu/public/common/unicode/ubrk.h"
-#include "third_party/icu/public/common/unicode/uscript.h"
 
 // A class which encapsulates language-specific operations used by
 // SpellcheckWordIterator. When we set the spellchecker language, this class
 // creates rule sets that filter out the characters not supported by the
 // spellchecker. (Please read the comment in the SpellcheckWordIterator class
 // about how to use this class.)
 class SpellcheckCharAttribute {
  public:
   SpellcheckCharAttribute();
   ~SpellcheckCharAttribute();
@@ skipping 132 matching lines @@
   const SpellcheckCharAttribute* attribute_;
 
   // The ICU break iterator.
   UBreakIterator* iterator_;
 
   DISALLOW_COPY_AND_ASSIGN(SpellcheckWordIterator);
 };
 
 #endif  // CHROME_RENDERER_SPELLCHECKER_SPELLCHECK_WORDITERATOR_H_