Add an extension bubble explaining which extensions are in dev mode.

chrome/chrome_tests_unit.gypi

 # Copyright 2012 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': [
     {
       # This target contains mocks and test utilities that don't belong in
       # production libraries but are used by more than one test executable.
       'target_name': 'test_support_common',
       'type': 'static_library',
@@ skipping 877 matching lines @@
         'browser/extensions/error_console/error_console_unittest.cc',
         'browser/extensions/event_router_forwarder_unittest.cc',
         'browser/extensions/extension_action_icon_factory_unittest.cc',
         'browser/extensions/extension_action_unittest.cc',
         'browser/extensions/extension_context_menu_model_unittest.cc',
         'browser/extensions/extension_creator_filter_unittest.cc',
         'browser/extensions/extension_function_test_utils.cc',
         'browser/extensions/extension_function_test_utils.h',
         'browser/extensions/extension_icon_image_unittest.cc',
         'browser/extensions/extension_icon_manager_unittest.cc',
-        'browser/extensions/policy_handlers_unittest.cc',
         'browser/extensions/extension_pref_value_map_unittest.cc',
         'browser/extensions/extension_prefs_unittest.cc',
         'browser/extensions/extension_prefs_unittest.h',
         'browser/extensions/extension_protocols_unittest.cc',
         'browser/extensions/extension_service_unittest.cc',
         'browser/extensions/extension_service_unittest.h',
         'browser/extensions/extension_special_storage_policy_unittest.cc',
         'browser/extensions/extension_sync_data_unittest.cc',
         'browser/extensions/extension_ui_unittest.cc',
         'browser/extensions/extension_warning_badge_service_unittest.cc',
         'browser/extensions/extension_warning_service_unittest.cc',
         'browser/extensions/external_policy_loader_unittest.cc',
         'browser/extensions/external_provider_impl_unittest.cc',
         'browser/extensions/external_provider_impl_chromeos_unittest.cc',
         'browser/extensions/image_loader_unittest.cc',
         'browser/extensions/menu_manager_unittest.cc',
         'browser/extensions/pack_extension_unittest.cc',
         'browser/extensions/page_action_controller_unittest.cc',
         'browser/extensions/permissions_updater_unittest.cc',
+        'browser/extensions/policy_handlers_unittest.cc',
         'browser/extensions/process_manager_unittest.cc',
         'browser/extensions/sandboxed_unpacker_unittest.cc',
         'browser/extensions/script_badge_controller_unittest.cc',
         'browser/extensions/script_bubble_controller_unittest.cc',
-        'browser/extensions/suspicious_extension_bubble_controller_unittest.cc',
+        'browser/extensions/extension_message_bubble_controller_unittest.cc',
         'browser/extensions/token_cache/token_cache_service_unittest.cc',
         'browser/extensions/standard_management_policy_provider_unittest.cc',
         'browser/extensions/updater/extension_updater_unittest.cc',
         'browser/extensions/user_script_listener_unittest.cc',
         'browser/extensions/user_script_master_unittest.cc',
         'browser/extensions/webstore_inline_installer_unittest.cc',
         'browser/extensions/webstore_installer_unittest.cc',
         'browser/external_protocol/external_protocol_handler_unittest.cc',
         'browser/favicon/favicon_handler_unittest.cc',
         'browser/file_select_helper_unittest.cc',
@@ skipping 1620 matching lines @@
             'browser/bookmarks/bookmark_html_writer_unittest.cc',
 
             # No service process (which also requires multiprocess lock).
             'common/multi_process_lock_unittest.cc',
 
             # Sync setup uses native ui.
             'browser/ui/webui/sync_setup_handler_unittest.cc',
 
             'browser/browser_commands_unittest.cc',
             'browser/download/download_shelf_unittest.cc',
-            'browser/extensions/suspicious_extension_bubble_controller_unittest.cc',
+            'browser/extensions/extension_message_bubble_controller_unittest.cc',
             'browser/storage_monitor/media_storage_util_unittest.cc',
             'browser/net/gaia/gaia_oauth_fetcher_unittest.cc',
             'browser/policy/policy_path_parser_unittest.cc',
             'browser/profiles/off_the_record_profile_impl_unittest.cc',
             'browser/profiles/profile_list_desktop_unittest.cc',
             'browser/search/instant_service_unittest.cc',
             'browser/search/search_unittest.cc',
             'browser/signin/mutable_profile_oauth2_token_service_unittest.cc',
             'browser/sync/profile_sync_service_session_unittest.cc',
             'browser/sync/sessions2/sessions_sync_manager_unittest.cc',
@@ skipping 325 matching lines @@
             'browser/ui/app_list/test/fake_profile_store.h',
             'browser/ui/app_list/test/fast_show_pickler_unittest.cc',
             'browser/ui/views/app_list/linux/app_list_linux_unittest.cc',
             'browser/ui/views/app_list/win/app_list_win_unittest.cc',
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }