favor DCHECK_CURRENTLY_ON for better logs in chrome/browser/prerender/, prefetch and printing

chrome/browser/printing/print_job_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/print_job_manager.h"
 
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/printing/print_job.h"
 #include "chrome/browser/printing/printer_query.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 58 matching lines @@
 
 PrintJobManager::PrintJobManager() : is_shutdown_(false) {
   registrar_.Add(this, chrome::NOTIFICATION_PRINT_JOB_EVENT,
                  content::NotificationService::AllSources());
 }
 
 PrintJobManager::~PrintJobManager() {
 }
 
 scoped_refptr<PrintQueriesQueue> PrintJobManager::queue() {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   if (!queue_.get())
     queue_ = new PrintQueriesQueue();
   return queue_;
 }
 
 void PrintJobManager::Shutdown() {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   DCHECK(!is_shutdown_);
   is_shutdown_ = true;
   registrar_.RemoveAll();
   StopJobs(true);
   if (queue_.get())
     queue_->Shutdown();
   queue_ = NULL;
 }
 
 void PrintJobManager::StopJobs(bool wait_for_finish) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   // Copy the array since it can be modified in transit.
   PrintJobs to_stop;
   to_stop.swap(current_jobs_);
 
   for (PrintJobs::const_iterator job = to_stop.begin(); job != to_stop.end();
        ++job) {
     // Wait for two minutes for the print job to be spooled.
     if (wait_for_finish)
       (*job)->FlushJob(base::TimeDelta::FromMinutes(2));
     (*job)->Stop();
   }
 }
 
 void PrintJobManager::Observe(int type,
                               const content::NotificationSource& source,
                               const content::NotificationDetails& details) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   switch (type) {
     case chrome::NOTIFICATION_PRINT_JOB_EVENT: {
       OnPrintJobEvent(content::Source<PrintJob>(source).ptr(),
                       *content::Details<JobEventDetails>(details).ptr());
       break;
     }
     default: {
       NOTREACHED();
       break;
     }
@@ skipping 30 matching lines @@
       break;
     }
     default: {
       NOTREACHED();
       break;
     }
   }
 }
 
 }  // namespace printing