sync: rewrite DataTypeManagerImpl without pause/resume logic.

chrome/chrome_browser.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': '<(library)',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 2200 matching lines @@
         'browser/sync/glue/bookmark_data_type_controller.cc',
         'browser/sync/glue/bookmark_data_type_controller.h',
         'browser/sync/glue/bookmark_model_associator.cc',
         'browser/sync/glue/bookmark_model_associator.h',
         'browser/sync/glue/change_processor.cc',
         'browser/sync/glue/change_processor.h',
         'browser/sync/glue/data_type_controller.h',
         'browser/sync/glue/data_type_manager.h',
         'browser/sync/glue/data_type_manager_impl.cc',
         'browser/sync/glue/data_type_manager_impl.h',
+        'browser/sync/glue/data_type_manager_impl2.cc',
+        'browser/sync/glue/data_type_manager_impl2.h',
         'browser/sync/glue/database_model_worker.cc',
         'browser/sync/glue/database_model_worker.h',
         'browser/sync/glue/do_optimistic_refresh_task.cc',
         'browser/sync/glue/do_optimistic_refresh_task.h',
         'browser/sync/glue/extension_change_processor.cc',
         'browser/sync/glue/extension_change_processor.h',
         'browser/sync/glue/extension_data.cc',
         'browser/sync/glue/extension_data.h',
         'browser/sync/glue/extension_data_type_controller.cc',
         'browser/sync/glue/extension_data_type_controller.h',
@@ skipping 2379 matching lines @@
       ],
     },
   ],
 }
 
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