Remove remaining calls to deprecated MessageLoop methods on Mac.

chrome/browser/ui/cocoa/autofill/card_unmask_prompt_view_bridge.mm

 // Copyright (c) 2015 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 "base/bind.h"
-#include "base/message_loop/message_loop.h"
 #include "base/strings/sys_string_conversions.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/ui/autofill/autofill_dialog_models.h"
 #include "chrome/browser/ui/chrome_style.h"
 #import "chrome/browser/ui/cocoa/autofill/autofill_pop_up_button.h"
 #import "chrome/browser/ui/cocoa/autofill/autofill_textfield.h"
 #import "chrome/browser/ui/cocoa/autofill/autofill_tooltip_controller.h"
 #include "chrome/browser/ui/cocoa/autofill/card_unmask_prompt_view_bridge.h"
 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_button.h"
 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_control_utils.h"
 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_custom_sheet.h"
 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_custom_window.h"
@@ skipping 81 matching lines @@
 
 void CardUnmaskPromptViewBridge::GotVerificationResult(
     const base::string16& error_message,
     bool allow_retry) {
   if (error_message.empty()) {
     [view_controller_ setProgressOverlayText:
                           l10n_util::GetStringUTF16(
                               IDS_AUTOFILL_CARD_UNMASK_VERIFICATION_SUCCESS)
                                  showSpinner:NO];
 
-    base::MessageLoop::current()->PostDelayedTask(
+    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
         FROM_HERE, base::Bind(&CardUnmaskPromptViewBridge::PerformClose,
                               weak_ptr_factory_.GetWeakPtr()),
         base::TimeDelta::FromSeconds(1));
   } else {
     [view_controller_ setProgressOverlayText:base::string16() showSpinner:NO];
 
     if (allow_retry) {
       // TODO(bondd): Views version never hides |errorLabel_|. When Views
       // decides when to hide it then do the same thing here.
       [view_controller_ setRetriableErrorMessage:error_message];
     } else {
       [view_controller_ setPermanentErrorMessage:error_message];
     }
   }
 }
 
 void CardUnmaskPromptViewBridge::OnConstrainedWindowClosed(
     ConstrainedWindowMac* window) {
   if (controller_)
     controller_->OnUnmaskDialogClosed();
-  base::MessageLoop::current()->DeleteSoon(FROM_HERE, this);
+  base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE, this);
 }
 
 CardUnmaskPromptController* CardUnmaskPromptViewBridge::GetController() {
   return controller_;
 }
 
 content::WebContents* CardUnmaskPromptViewBridge::GetWebContents() {
   return web_contents_;
 }
 
@@ skipping 588 matching lines @@
   [verifyButton_ setAction:@selector(onVerify:)];
   [verifyButton_ sizeToFit];
   [self updateVerifyButtonEnabled];
   [mainView addSubview:verifyButton_];
 
   [self setView:mainView];
   [self performLayoutAndDisplay:NO];
 }
 
 @end