Remove use of deprecated MessageLoop methods in chrome/.

chrome/browser/extensions/external_install_error.cc

 // Copyright 2014 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/extensions/external_install_error.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/bind.h"
+#include "base/location.h"
 #include "base/macros.h"
-#include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram_macros.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/extensions/extension_install_error_menu_item_id_provider.h"
 #include "chrome/browser/extensions/extension_install_prompt_show_params.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/external_install_manager.h"
 #include "chrome/browser/extensions/webstore_data_fetcher.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/global_error/global_error.h"
@@ skipping 289 matching lines @@
     error_service_->RemoveGlobalError(global_error_.get());
 }
 
 void ExternalInstallError::OnInstallPromptDone(
     ExtensionInstallPrompt::Result result) {
   const Extension* extension = GetExtension();
 
   // If the error isn't removed and deleted as part of handling the user's
   // response (which can happen, e.g., if an uninstall fails), be sure to remove
   // the error directly in order to ensure it's not called twice.
-  base::MessageLoop::current()->PostTask(
-      FROM_HERE,
-      base::Bind(&ExternalInstallError::RemoveError,
-                 weak_factory_.GetWeakPtr()));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&ExternalInstallError::RemoveError,
+                            weak_factory_.GetWeakPtr()));
 
   switch (result) {
     case ExtensionInstallPrompt::Result::ACCEPTED:
       if (extension) {
         ExtensionSystem::Get(browser_context_)
             ->extension_service()
             ->GrantPermissionsAndEnableExtension(extension);
       }
       break;
     case ExtensionInstallPrompt::Result::USER_CANCELED:
@@ skipping 117 matching lines @@
     global_error_.reset(new ExternalInstallMenuAlert(this));
     error_service_->AddGlobalError(global_error_.get());
   }
 }
 
 void ExternalInstallError::RemoveError() {
   manager_->RemoveExternalInstallError(extension_id_);
 }
 
 }  // namespace extensions