Removes MessageLoop::Type checks in favor of IsCurrent on MessageLoops.

chrome/browser/printing/printer_query.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.
 
 #include "chrome/browser/printing/printer_query.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/message_loop/message_loop.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/values.h"
 #include "chrome/browser/printing/print_job_worker.h"
 #include "chrome/browser/printing/printing_ui_web_contents_observer.h"
 
 namespace printing {
 
 PrinterQuery::PrinterQuery()
     : io_message_loop_(base::MessageLoop::current()),
       worker_(new PrintJobWorker(this)),
       is_print_dialog_box_shown_(false),
       cookie_(PrintSettings::NewCookie()),
       last_status_(PrintingContext::FAILED) {
-  DCHECK_EQ(io_message_loop_->type(), base::MessageLoop::TYPE_IO);
+  DCHECK(base::MessageLoopForIO::IsCurrent());
 }
 
 PrinterQuery::~PrinterQuery() {
   // The job should be finished (or at least canceled) when it is destroyed.
   DCHECK(!is_print_dialog_box_shown_);
   // If this fires, it is that this pending printer context has leaked.
   DCHECK(!worker_.get());
 }
 
 void PrinterQuery::GetSettingsDone(const PrintSettings& new_settings,
@@ skipping 100 matching lines @@
 
 bool PrinterQuery::is_callback_pending() const {
   return !callback_.is_null();
 }
 
 bool PrinterQuery::is_valid() const {
   return worker_.get() != NULL;
 }
 
 }  // namespace printing