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

chrome/browser/browser_process_impl.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/browser_process_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <map>
@@ skipping 194 matching lines @@
       created_local_state_(false),
       created_icon_manager_(false),
       created_notification_ui_manager_(false),
       created_notification_bridge_(false),
       created_safe_browsing_service_(false),
       created_subresource_filter_ruleset_service_(false),
       shutting_down_(false),
       tearing_down_(false),
       download_status_updater_(new DownloadStatusUpdater),
       local_state_task_runner_(local_state_task_runner),
+#if defined(OS_CHROMEOS)
+      memory_kills_monitor_handle_(
+          memory::MemoryKillsMonitor::StartMonitoring()),
+#endif  // !defined(OS_ANDROID)

[sky, 2016/11/26 16:49:40]

ANDROID->CHROMEOS

[cylee1, 2016/11/29 20:28:40]

Done.

       cached_default_web_client_state_(shell_integration::UNKNOWN_DEFAULT) {
   g_browser_process = this;
   platform_part_.reset(new BrowserProcessPlatformPart());
 
 #if BUILDFLAG(ENABLE_PRINTING)
   // Must be created after the NotificationService.
   print_job_manager_.reset(new printing::PrintJobManager);
 #endif
 
   base::FilePath net_log_path;
@@ skipping 1175 matching lines @@
 }
 
 void BrowserProcessImpl::OnAutoupdateTimer() {
   if (CanAutorestartForUpdate()) {
     DLOG(WARNING) << "Detected update.  Restarting browser.";
     RestartBackgroundInstance();
   }
 }
 
 #endif  // (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)