printing: Use base::MessageLoop.

printing/printing_context_win.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 "printing/printing_context_win.h"
 
 #include <winspool.h>
 
 #include <algorithm>
 
@@ skipping 460 matching lines @@
     filename += L"_";
     filename += UTF16ToWide(document_name);
     filename += L"_";
     filename += L"buffer.prn";
     file_util::ReplaceIllegalCharactersInPath(&filename, '_');
     debug_dump_path.Append(filename);
     di.lpszOutput = debug_dump_path.value().c_str();
   }
 
   // No message loop running in unit tests.
-  DCHECK(!MessageLoop::current() ? true :
-      !MessageLoop::current()->NestableTasksAllowed());
+  DCHECK(!base::MessageLoop::current()

[Lei Zhang, 2013/05/06 04:05:55]

How about this?

DCHECK(!base::MessageLoop::current() ||
       !base::MessageLoop::current()->NestableTasksAllowed())'

[xhwang, 2013/05/06 16:07:20]

Done.

+             ? true
+             : !base::MessageLoop::current()->NestableTasksAllowed());
 
   // Begin a print job by calling the StartDoc function.
   // NOTE: StartDoc() starts a message loop. That causes a lot of problems with
   // IPC. Make sure recursive task processing is disabled.
   if (StartDoc(context_, &di) <= 0)
     return OnError();
 
   return OK;
 }
 
@@ skipping 260 matching lines @@
 
   if (dialog_options.hDevMode != NULL)
     GlobalFree(dialog_options.hDevMode);
   if (dialog_options.hDevNames != NULL)
     GlobalFree(dialog_options.hDevNames);
 
   return context_ ? OK : FAILED;
 }
 
 }  // namespace printing