Rename omaha_client and similar tokens to update_client in all contexts.

components/component_updater.gypi

 # 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.
 
 {
   'targets': [
     {
       # GN version: //components/component_updater
       'target_name': 'component_updater',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
         '../courgette/courgette.gyp:courgette_lib',
         '../crypto/crypto.gyp:crypto',
         '../third_party/libxml/libxml.gyp:libxml',
         '../third_party/zlib/google/zip.gyp:zip',
         '../net/net.gyp:net',
         '../ui/base/ui_base.gyp:ui_base',
         '../url/url.gyp:url_lib',
         'crx_file',
-        'omaha_client',
+        'update_client',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         'component_updater/background_downloader_win.cc',
         'component_updater/background_downloader_win.h',
         'component_updater/component_patcher.cc',
         'component_updater/component_patcher.h',
         'component_updater/component_patcher_operation.cc',
@@ skipping 41 matching lines @@
         'component_updater/test/test_configurator.cc',
         'component_updater/test/test_configurator.h',
         'component_updater/test/test_installer.cc',
         'component_updater/test/test_installer.h',
         'component_updater/test/url_request_post_interceptor.cc',
         'component_updater/test/url_request_post_interceptor.h',
       ],
     },
   ],
 }