[chrome.dial] Adds chrome.dial.fetchDeviceDecription API.

chrome/browser/extensions/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
 import("//extensions/features/features.gni")
 import("//media/media_options.gni")
 import("//rlz/features/features.gni")
@@ skipping 158 matching lines @@
     "api/developer_private/developer_private_mangle.cc",
     "api/developer_private/developer_private_mangle.h",
     "api/developer_private/entry_picker.cc",
     "api/developer_private/entry_picker.h",
     "api/developer_private/extension_info_generator.cc",
     "api/developer_private/extension_info_generator.h",
     "api/developer_private/inspectable_views_finder.cc",
     "api/developer_private/inspectable_views_finder.h",
     "api/developer_private/show_permissions_dialog_helper.cc",
     "api/developer_private/show_permissions_dialog_helper.h",
+    "api/dial/device_description_fetcher.cc",
+    "api/dial/device_description_fetcher.h ",
     "api/dial/dial_api.cc",
     "api/dial/dial_api.h",
     "api/dial/dial_api_factory.cc",
     "api/dial/dial_api_factory.h",
     "api/dial/dial_device_data.cc",
     "api/dial/dial_device_data.h",
     "api/dial/dial_registry.cc",
     "api/dial/dial_registry.h",
     "api/dial/dial_service.cc",
     "api/dial/dial_service.h",
@@ skipping 993 matching lines @@
       "api/braille_display_private/brlapi_connection.cc",
       "api/braille_display_private/brlapi_connection.h",
       "api/braille_display_private/brlapi_keycode_map.cc",
       "api/braille_display_private/brlapi_keycode_map.h",
     ]
     deps += [ "//build/linux/libbrlapi" ]
   } else {
     sources += [ "api/braille_display_private/braille_controller_stub.cc" ]
   }
 }