Move UpdateManifest to //extensions

chrome/chrome_common.gypi

 # Copyright (c) 2013 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': {
     # File lists shared with GN build.
     'chrome_common_sources': [
       '../apps/app_shim/app_shim_launch.h',
       '../apps/app_shim/app_shim_messages.h',
@@ skipping 99 matching lines @@
       'common/extensions/manifest_handlers/ui_overrides_handler.cc',
       'common/extensions/manifest_handlers/ui_overrides_handler.h',
       'common/extensions/manifest_url_handler.cc',
       'common/extensions/manifest_url_handler.h',
       'common/extensions/permissions/chrome_api_permissions.cc',
       'common/extensions/permissions/chrome_api_permissions.h',
       'common/extensions/permissions/chrome_permission_message_provider.cc',
       'common/extensions/permissions/chrome_permission_message_provider.h',
       'common/extensions/sync_helper.cc',
       'common/extensions/sync_helper.h',
-      'common/extensions/update_manifest.cc',
-      'common/extensions/update_manifest.h',
       'common/favicon/favicon_url_parser.cc',
       'common/favicon/favicon_url_parser.h',
       'common/icon_with_badge_image_source.cc',
       'common/icon_with_badge_image_source.h',
       'common/instant_restricted_id_cache.h',
       'common/instant_types.cc',
       'common/instant_types.h',
       'common/localized_error.cc',
       'common/localized_error.h',
       'common/logging_chrome.cc',
@@ skipping 561 matching lines @@
         'common/safe_browsing/csd.proto'
       ],
       'variables': {
         'proto_in_dir': 'common/safe_browsing',
         'proto_out_dir': 'chrome/common/safe_browsing',
       },
       'includes': [ '../build/protoc.gypi' ],
     },
   ],
 }