Add an ExtensionPrefStore, layered between the user prefs nad the managed pre...

chrome/chrome_tests.gypi

 # 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.
 
 {
   'variables' : {
     'pyautolib_sources': [
       'app/chrome_dll_resource.h',
       'common/pref_names.cc',
       'common/pref_names.h',
@@ skipping 764 matching lines @@
         'browser/dom_ui/shown_sections_handler_unittest.cc',
         'browser/download/download_manager_unittest.cc',
         'browser/download/download_request_infobar_delegate_unittest.cc',
         'browser/download/download_request_manager_unittest.cc',
         'browser/download/save_package_unittest.cc',
         'browser/encoding_menu_controller_unittest.cc',
         'browser/extensions/convert_user_script_unittest.cc',
         'browser/extensions/extension_menu_manager_unittest.cc',
         'browser/extensions/extension_messages_unittest.cc',
         'browser/extensions/extension_prefs_unittest.cc',
+        'browser/extensions/extension_pref_store_unittest.cc',
         'browser/extensions/extension_process_manager_unittest.cc',
         'browser/extensions/extension_ui_unittest.cc',
         'browser/extensions/extension_updater_unittest.cc',
         'browser/extensions/extensions_quota_service_unittest.cc',
         'browser/extensions/extensions_service_unittest.cc',
         'browser/extensions/extensions_service_unittest.h',
         'browser/extensions/file_reader_unittest.cc',
         'browser/extensions/image_loading_tracker_unittest.cc',
         'browser/extensions/sandboxed_extension_unpacker_unittest.cc',
         'browser/extensions/user_script_listener_unittest.cc',
@@ skipping 1771 matching lines @@
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }
 
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