Separate out some more ICU from base and into base/i18n....

base/base.gyp

 # Copyright (c) 2009 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 102 matching lines @@
         'event_recorder.h',
         'event_recorder_stubs.cc',
         'field_trial.cc',
         'field_trial.h',
         'file_descriptor_shuffle.cc',
         'file_descriptor_shuffle.h',
         'file_path.cc',
         'file_path.h',
         'file_util.cc',
         'file_util.h',
-        'file_util_icu.cc',
         'file_util_linux.cc',
         'file_util_mac.mm',
         'file_util_posix.cc',
         'file_util_win.cc',
         'file_version_info.cc',
         'file_version_info.h',
         'file_version_info_mac.mm',
         'fix_wp64.h',
         'float_util.h',
         'foundation_utils_mac.h',
         'global_descriptors_posix.h',
         'global_descriptors_posix.cc',
         'hash_tables.h',
         'histogram.cc',
         'histogram.h',
         'hmac.h',
         'hmac_mac.cc',
         'hmac_nss.cc',
         'hmac_win.cc',
+        'i18n/file_util_icu.cc',
+        'i18n/file_util_icu.h',
         'i18n/icu_string_conversions.cc',
         'i18n/icu_string_conversions.h',
+        'i18n/number_formatting.cc',
+        'i18n/number_formatting.h',
         'iat_patch.cc',
         'iat_patch.h',
         'icu_util.cc',
         'icu_util.h',
         'id_map.h',
         'image_util.cc',
         'image_util.h',
         'json_reader.cc',
         'json_reader.h',
         'json_writer.cc',
@@ skipping 121 matching lines @@
         'stl_util-inl.h',
         'string16.cc',
         'string16.h',
         'string_escape.cc',
         'string_escape.h',
         'string_piece.cc',
         'string_piece.h',
         'string_tokenizer.h',
         'string_util.cc',
         'string_util.h',
-        'string_util_icu.cc',
         'string_util_win.h',
         'sys_info.h',
         'sys_info_chromeos.cc',
         'sys_info_mac.cc',
         'sys_info_posix.cc',
         'sys_info_win.cc',
         'sys_string_conversions.h',
         'sys_string_conversions_linux.cc',
         'sys_string_conversions_mac.mm',
         'sys_string_conversions_win.cc',
@@ skipping 293 matching lines @@
         'file_descriptor_shuffle_unittest.cc',
         'file_path_unittest.cc',
         'file_util_unittest.cc',
         'file_version_info_unittest.cc',
         'gfx/native_theme_unittest.cc',
         'gfx/rect_unittest.cc',
         'gmock_unittest.cc',
         'histogram_unittest.cc',
         'hmac_unittest.cc',
         'id_map_unittest.cc',
+        'i18n/file_util_icu_unittest.cc',
         'json_reader_unittest.cc',
         'json_writer_unittest.cc',
         'lazy_instance_unittest.cc',
         'leak_tracker_unittest.cc',
         'linked_list_unittest.cc',
         'linked_ptr_unittest.cc',
         'mac_util_unittest.cc',
         'message_loop_unittest.cc',
         'message_pump_glib_unittest.cc',
         'object_watcher_unittest.cc',
@@ skipping 245 matching lines @@
       ],
     }],
   ],
 }
 
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