Consolidate code monitoring low memory kills and OOM kills to MemoryKillsMonitor on ChromeOS.

chrome/browser/chromeos/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/features.gni")
 import("//build/config/ui.gni")
 import("//extensions/features/features.gni")
 import("//media/media_options.gni")
 import("//printing/features/features.gni")
 import("//third_party/protobuf/proto_library.gni")
@@ skipping 1352 matching lines @@
 source_set("unit_tests") {
   testonly = true
 
   sources = [
     # TODO(lukasza): Move Drive tests outside of CrOS (crbug.com/498951).
     "../download/notification/download_item_notification_unittest.cc",
     "../extensions/api/enterprise_platform_keys/enterprise_platform_keys_api_unittest.cc",
     "../extensions/api/enterprise_platform_keys_private/enterprise_platform_keys_private_api_unittest.cc",
     "../extensions/api/log_private/syslog_parser_unittest.cc",
     "../extensions/updater/local_extension_cache_unittest.cc",
+    "../memory/memory_kills_monitor_unittest.cc",
     "../metrics/chromeos_metrics_provider_unittest.cc",
     "../metrics/leak_detector/leak_detector_controller_unittest.cc",
     "../metrics/perf/cpu_identity_unittest.cc",
     "../metrics/perf/random_selector_unittest.cc",
     "../notifications/login_state_notification_blocker_chromeos_unittest.cc",
     "../policy/default_geolocation_policy_handler_unittest.cc",
     "../ui/browser_finder_chromeos_unittest.cc",
     "accessibility/magnification_manager_unittest.cc",
     "accessibility/spoken_feedback_event_rewriter_unittest.cc",
     "arc/arc_auth_service_unittest.cc",
@@ skipping 260 matching lines @@
     "policy/proto/chrome_device_policy.proto",
     "policy/proto/install_attributes.proto",
   ]
 }
 
 proto_library("attestation_proto") {
   sources = [
     "attestation/attestation_key_payload.proto",
   ]
 }