Remove calls to deprecated MessageLoop methods on Windows and Linux.

chrome/browser/printing/cloud_print/test/cloud_print_proxy_process_browsertest.cc

 // Copyright (c) 2012 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.
 
 // Create a service process that uses a Mock to respond to the browser in order
 // to test launching the browser using the cloud print policy check command
 // line switch.
 
 #include <stdint.h>
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/process/kill.h"
 #include "base/process/process.h"
 #include "base/rand_util.h"
+#include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/multiprocess_test.h"
 #include "base/test/test_timeouts.h"
 #include "base/threading/platform_thread.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/time/default_tick_clock.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "chrome/browser/chrome_content_browser_client.h"
@@ skipping 246 matching lines @@
   std::string startup_channel_name =
       base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
           switches::kProcessChannelID);
   std::unique_ptr<IPC::ChannelProxy> startup_channel;
   startup_channel =
       IPC::ChannelProxy::Create(startup_channel_name,
                                 IPC::Channel::MODE_CLIENT,
                                 &listener,
                                 service_process.io_task_runner());
 
-  main_message_loop.Run();
+  base::RunLoop().Run();
   if (!Mock::VerifyAndClearExpectations(&server))
     return kExpectationsNotMet;
   if (!g_good_shutdown)
     return kShutdownNotGood;
   return 0;
 }
 
 void SetServiceEnabledExpectations(MockServiceIPCServer* server) {
   server->SetServiceEnabledExpectations();
 }
@@ skipping 223 matching lines @@
   // LocalState for the BrowserProcess.  Must be created before profiles are
   // constructed.
   chrome::TestingIOThreadState testing_io_thread_state;
 
   base::Process process =
       Launch("CloudPrintMockService_StartEnabledWaitForQuit");
   WaitForConnect();
   ShutdownAndWaitForExitWithTimeout(std::move(process));
   content::RunAllPendingInMessageLoop();
 }