chrome: Use base::MessageLoop. (Part 3)

chrome/browser/printing/background_printing_manager.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/background_printing_manager.h"
 
 #include "base/stl_util.h"
 #include "chrome/browser/printing/print_job.h"
 #include "chrome/browser/printing/print_preview_dialog_controller.h"
 #include "chrome/common/chrome_notification_types.h"
@@ skipping 135 matching lines @@
     printing_contents_pending_deletion_set_.erase(preview_contents);
   }
 }
 
 void BackgroundPrintingManager::DeletePreviewContents(
     WebContents* preview_contents) {
   registrar_.Remove(this, chrome::NOTIFICATION_PRINT_JOB_RELEASED,
                     content::Source<WebContents>(preview_contents));
   printing_contents_set_.erase(preview_contents);
   printing_contents_pending_deletion_set_.insert(preview_contents);
-  MessageLoop::current()->DeleteSoon(FROM_HERE, preview_contents);
+  base::MessageLoop::current()->DeleteSoon(FROM_HERE, preview_contents);
 }
 
 bool BackgroundPrintingManager::HasSharedRenderProcessHost(
     const WebContentsSet& set, WebContents* preview_contents) {
   content::RenderProcessHost* rph = preview_contents->GetRenderProcessHost();
   for (WebContentsSet::const_iterator it = set.begin(); it != set.end(); ++it) {
     WebContents* iter_contents = *it;
     if (iter_contents == preview_contents)
       continue;
     if (iter_contents->GetRenderProcessHost() == rph)
@@ skipping 12 matching lines @@
   return printing_contents_set_.end();
 }
 
 bool BackgroundPrintingManager::HasPrintPreviewDialog(
     WebContents* preview_dialog) {
   return (ContainsKey(printing_contents_set_, preview_dialog) ||
           ContainsKey(printing_contents_pending_deletion_set_, preview_dialog));
 }
 
 }  // namespace printing