[task_manager] Add ARC process whitelist.

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 4414 matching lines @@
   if (is_chromeos) {
     deps += [
       "//chrome/browser/chromeos:unit_tests",
       "//chromeos/ime:gencode",
     ]
     sources -= [
       "../browser/policy/cloud/user_policy_signin_service_unittest.cc",
       "../browser/signin/signin_manager_unittest.cc",
     ]
     sources += [
+      "../browser/task_manager/providers/arc/arc_process_whitelist_unittest.cc",
       "base/ash_test_environment_chrome.cc",
       "base/ash_test_environment_chrome.h",
     ]
   }
   if (use_x11) {
     deps += [ "//ui/events/devices" ]
   } else {
     sources -= [ "../browser/password_manager/password_store_x_unittest.cc" ]
   }
   if (use_gnome_keyring && current_cpu == "x64") {
@@ skipping 683 matching lines @@
 }
 
 if (is_win) {
   loadable_module("conflicts_dll") {
     testonly = true
     sources = [
       "conflicts/conflicts_dll.cc",
     ]
   }
 }