chrome/browser: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

chrome/browser/printing/print_view_manager_base.cc

 // Copyright 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/browser/printing/print_view_manager_base.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
+#include "base/location.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/prefs/pref_service.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/thread_task_runner_handle.h"
 #include "base/timer/timer.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/printing/print_job.h"
 #include "chrome/browser/printing/print_job_manager.h"
 #include "chrome/browser/printing/printer_query.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/simple_message_box.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/grit/generated_resources.h"
@@ skipping 179 matching lines @@
 
   ReleasePrinterQuery();
 
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_PRINT_JOB_RELEASED,
       content::Source<content::WebContents>(web_contents()),
       content::NotificationService::NoDetails());
 }
 
 void PrintViewManagerBase::OnShowInvalidPrinterSettingsError() {
-  base::MessageLoop::current()->PostTask(
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE, base::Bind(&ShowWarningMessageBox,
                             l10n_util::GetStringUTF16(
                                 IDS_PRINT_INVALID_PRINTER_SETTINGS)));
 }
 
 void PrintViewManagerBase::DidStartLoading() {
   UpdateScriptedPrintingBlocked();
 }
 
 bool PrintViewManagerBase::OnMessageReceived(const IPC::Message& message) {
@@ skipping 304 matching lines @@
   scoped_refptr<printing::PrinterQuery> printer_query;
   printer_query = queue_->PopPrinterQuery(cookie);
   if (!printer_query.get())
     return;
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&PrinterQuery::StopWorker, printer_query.get()));
 }
 
 }  // namespace printing