Remove MessageLoop::DestructionObserver registration from ConfigurationPolicyLoaderWin

chrome/browser/policy/configuration_policy_loader_win.cc

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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/policy/configuration_policy_loader_win.h"
 
 #include <userenv.h>
 
 #include "chrome/browser/browser_thread.h"
 
 namespace policy {
@@ skipping 12 matching lines @@
   }
   if (!RegisterGPNotification(machine_policy_changed_event_.handle(), true)) {
     PLOG(WARNING) << "Failed to register machine group policy notification.";
     machine_policy_watcher_failed_ = true;
   }
 }
 
 void ConfigurationPolicyLoaderWin::InitOnFileThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   AsynchronousPolicyLoader::InitOnFileThread();
-  MessageLoop::current()->AddDestructionObserver(this);
   SetupWatches();
 }
 
 void ConfigurationPolicyLoaderWin::StopOnFileThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  MessageLoop::current()->RemoveDestructionObserver(this);
   user_policy_watcher_.StopWatching();
   machine_policy_watcher_.StopWatching();
   AsynchronousPolicyLoader::StopOnFileThread();
 }
 
 void ConfigurationPolicyLoaderWin::SetupWatches() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   CancelReloadTask();
 
   if (!user_policy_watcher_failed_ &&
@@ skipping 23 matching lines @@
 
 void ConfigurationPolicyLoaderWin::OnObjectSignaled(HANDLE object) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   DCHECK(object == user_policy_changed_event_.handle() ||
          object == machine_policy_changed_event_.handle())
       << "unexpected object signaled policy reload, obj = "
       << std::showbase << std::hex << object;
   Reload();
 }
 
-void ConfigurationPolicyLoaderWin::
-    WillDestroyCurrentMessageLoop() {
-  CancelReloadTask();
-  MessageLoop::current()->RemoveDestructionObserver(this);
-}
-
 }  // namespace policy