Remove calls to deprecated MessageLoop methods on Windows and Linux.

extensions/shell/test/shell_test.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 "extensions/shell/test/shell_test.h"
 
 #include "base/base_paths.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
+#include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
+#include "base/run_loop.h"
 #include "build/build_config.h"
 #include "components/version_info/version_info.h"
 #include "content/public/common/content_switches.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/shell/browser/desktop_controller.h"
 #include "extensions/shell/browser/shell_content_browser_client.h"
 #include "extensions/shell/browser/shell_extension_system.h"
 
 namespace extensions {
 
@@ skipping 28 matching lines @@
 }
 
 void AppShellTest::SetUpOnMainThread() {
   browser_context_ = ShellContentBrowserClient::Get()->GetBrowserContext();
 
   extension_system_ = static_cast<ShellExtensionSystem*>(
       ExtensionSystem::Get(browser_context_));
 }
 
 void AppShellTest::RunTestOnMainThreadLoop() {
-  base::MessageLoopForUI::current()->RunUntilIdle();
+  DCHECK(base::MessageLoopForUI::IsCurrent());
+  base::RunLoop().RunUntilIdle();
 
   SetUpOnMainThread();
 
   RunTestOnMainThread();
 
   TearDownOnMainThread();
 
   // Clean up the app window.
   DesktopController::instance()->CloseAppWindows();
 }
 
 }  // namespace extensions