Move Mime type handling to streamsPrivate API, so that it works on Desktop Chrome.

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 588 matching lines @@
         'browser/chromeos/drive/mock_drive_cache_observer.cc',
         'browser/chromeos/drive/mock_drive_cache_observer.h',
         'browser/chromeos/drive/mock_drive_file_system.cc',
         'browser/chromeos/drive/mock_drive_file_system.h',
         'browser/chromeos/drive/resource_entry_conversion_unittest.cc',
         'browser/chromeos/drive/search_metadata_unittest.cc',
         'browser/chromeos/drive/stale_cache_files_remover_unittest.cc',
         'browser/chromeos/extensions/default_app_order_unittest.cc',
         'browser/chromeos/extensions/file_browser_manifest_unittest.cc',
         'browser/chromeos/extensions/file_browser_notifications_unittest.cc',
-        'browser/chromeos/extensions/file_browser_resource_throttle_unittest.cc',
         'browser/chromeos/extensions/wallpaper_private_api_unittest.cc',
         'browser/chromeos/external_metrics_unittest.cc',
         'browser/chromeos/imageburner/burn_manager_unittest.cc',
         'browser/chromeos/input_method/browser_state_monitor_unittest.cc',
         'browser/chromeos/input_method/candidate_window_controller_impl_unittest.cc',
         'browser/chromeos/input_method/candidate_window_view_unittest.cc',
         'browser/chromeos/input_method/ibus_controller_base_unittest.cc',
         'browser/chromeos/input_method/ibus_controller_impl_unittest.cc',
         'browser/chromeos/input_method/ibus_controller_unittest.cc',
         'browser/chromeos/input_method/input_method_configuration_unittest.cc',
@@ skipping 101 matching lines @@
         'browser/extensions/api/messaging/native_message_process_host_unittest.cc',
         'browser/extensions/api/omnibox/omnibox_unittest.cc',
         'browser/extensions/api/permissions/permissions_api_helpers_unittest.cc',
         'browser/extensions/api/proxy/proxy_api_helpers_unittest.cc',
         'browser/extensions/api/push_messaging/obfuscated_gaia_id_fetcher_unittest.cc',
         'browser/extensions/api/push_messaging/push_messaging_invalidation_handler_unittest.cc',
         'browser/extensions/api/serial/serial_port_enumerator_unittest.cc',
         'browser/extensions/api/socket/socket_api_unittest.cc',
         'browser/extensions/api/socket/tcp_socket_unittest.cc',
         'browser/extensions/api/socket/udp_socket_unittest.cc',
+        'browser/extensions/api/streams_private/streams_private_manifest_unittest.cc',
+        'browser/extensions/api/streams_private/streams_resource_throttle_unittest.cc',
         'browser/extensions/api/system_info_storage/storage_info_provider_linux_unittest.cc',
         'browser/extensions/api/system_info_storage/storage_info_provider_unittest.cc',
         'browser/extensions/api/web_navigation/frame_navigation_state_unittest.cc',
         'browser/extensions/api/web_request/form_data_parser_unittest.cc',
         'browser/extensions/api/web_request/upload_data_presenter_unittest.cc',
         'browser/extensions/api/web_request/web_request_api_unittest.cc',
         'browser/extensions/api/web_request/web_request_permissions_unittest.cc',
         'browser/extensions/api/web_request/web_request_time_tracker_unittest.cc',
         'browser/extensions/app_notification_manager_sync_unittest.cc',
         'browser/extensions/app_notification_manager_unittest.cc',
@@ skipping 1654 matching lines @@
               # more details.
               'DebugInformationFormat': '3',
               'ProgramDataBaseFileName': '<(PRODUCT_DIR)/unit_tests.exe.pdb',
             },
           },
         },
       ],
     }],
   ],  # 'conditions'
 }