cros: Turn on close() tracking on dev

chrome/browser/chromeos/chrome_browser_main_chromeos.cc

 // Copyright (c) 2013 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/chromeos/chrome_browser_main_chromeos.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 351 matching lines @@
   const char kChromeOSReleaseTrack[] = "CHROMEOS_RELEASE_TRACK";
   std::string channel;
   if (base::SysInfo::GetLsbReleaseValue(kChromeOSReleaseTrack, &channel))
     chrome::SetChannel(channel);
 #endif
 
   // Start monitoring OOM kills.
   memory_kills_monitor_ = base::MakeUnique<memory::MemoryKillsMonitor::Handle>(
       memory::MemoryKillsMonitor::StartMonitoring());
 
   // Enable libc close tracking in browser process on unknown/canary channel for

[Daniel Erat, 2017/02/14 23:01:11]

nit: update this comment (maybe to omit the channel names, since it's obvious
what it's doing from the code):

// Crash on libc double-close() to try to track down bugs:
http://crbug.com/660960

[xiyuan, 2017/02/14 23:32:42]

Good point. Done.

   // http://crbug.com/660960.
   // TODO(xiyuan): Remove this.
-  if (chrome::GetChannel() == version_info::Channel::CANARY ||
+  if (chrome::GetChannel() == version_info::Channel::DEV ||
+      chrome::GetChannel() == version_info::Channel::CANARY ||
       chrome::GetChannel() == version_info::Channel::UNKNOWN) {
     chromeos::InitCloseTracking();
   }
 
   ChromeBrowserMainPartsLinux::PreEarlyInitialization();
 }
 
 void ChromeBrowserMainPartsChromeos::PreMainMessageLoopStart() {
   // Replace the default NetworkChangeNotifierFactory with ChromeOS specific
   // implementation. This must be done before BrowserMainLoop calls
@@ skipping 554 matching lines @@
 
   ChromeBrowserMainPartsLinux::PostDestroyThreads();
 
   // Destroy DeviceSettingsService after g_browser_process.
   DeviceSettingsService::Shutdown();
 
   chromeos::ShutdownCloseTracking();
 }
 
 }  //  namespace chromeos