Remove use of deprecated MessageLoop methods in chrome/.

chrome/browser/chromeos/net/network_portal_detector_impl.cc

Index: chrome/browser/chromeos/net/network_portal_detector_impl.cc
diff --git a/chrome/browser/chromeos/net/network_portal_detector_impl.cc b/chrome/browser/chromeos/net/network_portal_detector_impl.cc
index 394fc91e859bbf86c0e1d7da31db13daf45f56a3..322e9a014d618c5b7778ee23dae70d6d3f2ed09e 100644
--- a/chrome/browser/chromeos/net/network_portal_detector_impl.cc
+++ b/chrome/browser/chromeos/net/network_portal_detector_impl.cc
@@ -8,10 +8,12 @@
 
 #include "base/bind.h"
 #include "base/command_line.h"
+#include "base/location.h"
 #include "base/logging.h"
-#include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/net/network_portal_notification_controller.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
@@ -430,7 +432,7 @@ void NetworkPortalDetectorImpl::ScheduleAttempt(const base::TimeDelta& delay) {
   next_attempt_delay_ = std::max(delay, strategy_->GetDelayTillNextAttempt());
   attempt_task_.Reset(base::Bind(&NetworkPortalDetectorImpl::StartAttempt,
                                  weak_factory_.GetWeakPtr()));
-  base::MessageLoop::current()->PostDelayedTask(
+  base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
       FROM_HERE, attempt_task_.callback(), next_attempt_delay_);
 }
 
@@ -449,9 +451,8 @@ void NetworkPortalDetectorImpl::StartAttempt() {
       base::Bind(&NetworkPortalDetectorImpl::OnAttemptTimeout,
                  weak_factory_.GetWeakPtr()));
 
-  base::MessageLoop::current()->PostDelayedTask(
-      FROM_HERE,
-      attempt_timeout_.callback(),
+  base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+      FROM_HERE, attempt_timeout_.callback(),
       strategy_->GetNextAttemptTimeout());
 }