base: Update the include paths of base/string_piece.h to its new location.

base/i18n/icu_string_conversions_unittest.cc

 // 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.
 
 #include <math.h>
 #include <stdarg.h>
 
 #include <limits>
 #include <sstream>
 
 #include "base/basictypes.h"
 #include "base/format_macros.h"
 #include "base/i18n/icu_string_conversions.h"
 #include "base/logging.h"
 #include "base/stringprintf.h"
-#include "base/string_piece.h"
+#include "base/strings/string_piece.h"
 #include "base/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 
 namespace {
 
 // Given a null-terminated string of wchar_t with each wchar_t representing
 // a UTF-16 code unit, returns a string16 made up of wchar_t's in the input.
 // Each wchar_t should be <= 0xFFFF and a non-BMP character (> U+FFFF)
@@ skipping 350 matching lines @@
 
     bool success = ConvertToUtf8AndNormalize(
         kConvertAndNormalizeCases[i].encoded,
         kConvertAndNormalizeCases[i].codepage_name, &result);
     EXPECT_EQ(kConvertAndNormalizeCases[i].expected_success, success);
     EXPECT_EQ(kConvertAndNormalizeCases[i].expected_value, result);
   }
 }
 
 }  // namespace base