Remove use of deprecated MessageLoop methods in chrome/.

chrome/service/cloud_print/printer_job_handler_unittest.cc

 // Copyright (c) 2013 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/service/cloud_print/printer_job_handler.h"
 
 #include <memory>
 
 #include "base/files/file_path.h"
 #include "base/location.h"
@@ skipping 595 matching lines @@
 
 void PrinterJobHandlerTest::BeginTest(int timeout_seconds) {
   job_handler_ = new PrinterJobHandler(basic_info_,
                                        info_from_cloud_,
                                        GURL(kExampleCloudPrintServerURL),
                                        print_system_.get(),
                                        &jobhandler_delegate_);
 
   job_handler_->Initialize();
 
-  base::MessageLoop::current()->PostDelayedTask(
-      FROM_HERE,
-      base::Bind(&PrinterJobHandlerTest::MessageLoopQuitSoonHelper,
-                 base::MessageLoop::current()),
+  base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+      FROM_HERE, base::Bind(&PrinterJobHandlerTest::MessageLoopQuitSoonHelper,
+                            base::MessageLoop::current()),
       base::TimeDelta::FromSeconds(timeout_seconds));
 
   base::MessageLoop::current()->Run();
 }
 
 void PrinterJobHandlerTest::SendCapsAndDefaults(
     const std::string& printer_name,
     const PrintSystem::PrinterCapsAndDefaultsCallback& callback) {
   callback.Run(true, printer_name, caps_and_defaults_);
 }
@@ skipping 190 matching lines @@
       .WillOnce(InvokeWithoutArgs(
           this, &PrinterJobHandlerTest::MakeJobFetchReturnNoJobs));
 
   EXPECT_CALL(url_callback_, OnRequestCreate(TicketURI(1), _))
       .Times(AtLeast(kNumRetriesBeforeAbandonJob));
 
   BeginTest(70);
 }
 
 }  // namespace cloud_print