Replace MessageLoop::current()->task_runner() with ThreadTaskRunnerHandle::Get().

chrome/browser/chromeos/login/easy_unlock/easy_unlock_reauth.cc

Index: chrome/browser/chromeos/login/easy_unlock/easy_unlock_reauth.cc
diff --git a/chrome/browser/chromeos/login/easy_unlock/easy_unlock_reauth.cc b/chrome/browser/chromeos/login/easy_unlock/easy_unlock_reauth.cc
index f04370b3a6799a7fba686d20b40424350c0f1d72..0de29c0241392ac4022af1d3bda16ff234c97b62 100644
--- a/chrome/browser/chromeos/login/easy_unlock/easy_unlock_reauth.cc
+++ b/chrome/browser/chromeos/login/easy_unlock/easy_unlock_reauth.cc
@@ -4,9 +4,11 @@
 
 #include "base/bind.h"
 #include "base/location.h"
+#include "base/logging.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/login/easy_unlock/easy_unlock_reauth.h"
 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
@@ -94,9 +96,10 @@ class ReauthHandler : public content::NotificationObserver,
 
   // chromeos::AuthStatusConsumer:
   void OnAuthSuccess(const chromeos::UserContext& user_context) override {
+    DCHECK(base::MessageLoopForUI::IsCurrent());
     callback_.Run(user_context);
     // Schedule deletion.
-    base::MessageLoopForUI::current()->task_runner()->PostTask(
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE, base::Bind(&EndReauthAttempt));
   }