Adding ExperimentLabels helper class.

chrome/installer/util/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/chrome_build.gni")
 import("//testing/test.gni")
 
 # This file deliberately has no default "util" target so dependants have to
 # specify with the ":with_no_strings" or ":with_rc_strings" variants. Random
 # code that ends up getting linked into chrome proper should depend on the
@@ skipping 39 matching lines @@
   # The constants target checks the Chrome distribution from this target. Both
   # targets have to be linked together in practice.
   allow_circular_includes_from = [ "//chrome/common:constants" ]
 
   if (is_win) {
     sources = [
       "chrome_browser_operations.cc",
       "chrome_browser_operations.h",
       "delete_after_reboot_helper.cc",
       "delete_after_reboot_helper.h",
+      "experiment_labels.cc",
+      "experiment_labels.h",
       "google_chrome_distribution.cc",
       "google_chrome_distribution.h",
       "html_dialog.h",
       "html_dialog_impl.cc",
       "logging_installer.cc",
       "logging_installer.h",
       "lzma_file_allocator.cc",
       "lzma_file_allocator.h",
       "lzma_util.cc",
       "lzma_util.h",
@@ skipping 212 matching lines @@
       "conditional_work_item_list_unittest.cc",
       "copy_tree_work_item_unittest.cc",
       "create_dir_work_item_unittest.cc",
       "create_reg_key_work_item_unittest.cc",
       "delete_after_reboot_helper_unittest.cc",
       "delete_old_versions_unittest.cc",
       "delete_reg_key_work_item_unittest.cc",
       "delete_reg_value_work_item_unittest.cc",
       "delete_tree_work_item_unittest.cc",
       "duplicate_tree_detector_unittest.cc",
+      "experiment_labels_unittest.cc",
       "google_update_settings_unittest.cc",
       "install_util_unittest.cc",
       "installer_util_test_common.cc",
       "installer_util_test_common.h",
       "l10n_string_util_unittest.cc",
       "language_selector_unittest.cc",
       "legacy_firewall_manager_win_unittest.cc",
       "logging_installer_unittest.cc",
       "lzma_file_allocator_unittest.cc",
       "lzma_util_unittest.cc",
@@ skipping 35 matching lines @@
       "//testing/gmock",
       "//testing/gtest",
     ]
 
     data = [
       "//chrome/test/data/extensions/",
       "//chrome/test/data/installer/",
     ]
   }
 }  # is_win