Add the ThirdPartyModules.Uninstallable histogram.

chrome/test/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("//build/config/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
@@ skipping 2920 matching lines @@
     "../browser/chrome_content_browser_client_unittest.cc",
     "../browser/chrome_process_singleton_win_unittest.cc",
     "../browser/command_updater_unittest.cc",
     "../browser/component_updater/chrome_component_updater_configurator_unittest.cc",
     "../browser/component_updater/component_installer_errors_unittest.cc",
     "../browser/component_updater/origin_trials_component_installer_unittest.cc",
     "../browser/component_updater/sth_set_component_installer_unittest.cc",
     "../browser/component_updater/subresource_filter_component_installer_unittest.cc",
     "../browser/component_updater/supervised_user_whitelist_installer_unittest.cc",
     "../browser/component_updater/sw_reporter_installer_win_unittest.cc",
+    "../browser/conflicts/installed_programs_win_unittest.cc",
     "../browser/conflicts/module_database_win_unittest.cc",
     "../browser/conflicts/module_event_sink_impl_win_unittest.cc",
     "../browser/conflicts/module_info_util_win_unittest.cc",
     "../browser/conflicts/module_info_win_unittest.cc",
     "../browser/conflicts/module_inspector_win_unittest.cc",
     "../browser/content_settings/content_settings_default_provider_unittest.cc",
     "../browser/content_settings/content_settings_mock_observer.cc",
     "../browser/content_settings/content_settings_mock_observer.h",
     "../browser/content_settings/content_settings_origin_identifier_value_map_unittest.cc",
     "../browser/content_settings/content_settings_policy_provider_unittest.cc",
@@ skipping 2075 matching lines @@
 }
 
 if (is_win) {
   loadable_module("conflicts_dll") {
     testonly = true
     sources = [
       "conflicts/conflicts_dll.cc",
     ]
   }
 }