[chrome/browser] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

chrome/browser/notifications/message_center_settings_controller.cc

Index: chrome/browser/notifications/message_center_settings_controller.cc
diff --git a/chrome/browser/notifications/message_center_settings_controller.cc b/chrome/browser/notifications/message_center_settings_controller.cc
index 70d674488056c2fbd3b89dfdb319b8172e6aa053..dcd6d4fdc11b0a819f5549240c16c438b18b85c1 100644
--- a/chrome/browser/notifications/message_center_settings_controller.cc
+++ b/chrome/browser/notifications/message_center_settings_controller.cc
@@ -8,9 +8,9 @@
 
 #include "base/command_line.h"
 #include "base/i18n/string_compare.h"
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/task/cancelable_task_tracker.h"
+#include "base/thread_task_runner_handle.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/app_icon_loader_impl.h"
@@ -540,7 +540,7 @@ void MessageCenterSettingsController::RebuildNotifierGroups(bool notify) {
     // registering it as the primary one, which causes this method which causes
     // another creating a primary profile, and causes an infinite loop.
     // Thus, it would be better to delay creating group for guest login.
-    base::MessageLoopProxy::current()->PostTask(
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE,
         base::Bind(
             &MessageCenterSettingsController::CreateNotifierGroupForGuestLogin,