[chrome/browser/net] favor DCHECK_CURRENTLY_ON for better logs

chrome/browser/net/url_request_mock_util.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/net/url_request_mock_util.h"
 
 #include <string>
 
 #include "base/path_service.h"
 #include "base/threading/thread_restrictions.h"
 #include "chrome/common/chrome_paths.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/test/url_request/url_request_failed_job.h"
 #include "net/test/url_request/url_request_mock_http_job.h"
 #include "net/test/url_request/url_request_slow_download_job.h"
 #include "net/url_request/url_request_filter.h"
 
 using content::BrowserThread;
 
 namespace chrome_browser_net {
 
 void SetUrlRequestMocksEnabled(bool enabled) {
   // Since this involves changing the net::URLRequest ProtocolFactory, we need
   // to run on the IO thread.
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   if (enabled) {
     // We have to look around for our helper files, but we only use
     // this from tests, so allow these IO operations to happen
     // anywhere.
     base::ThreadRestrictions::ScopedAllowIO allow_io;
 
     net::URLRequestFilter::GetInstance()->ClearHandlers();
 
     net::URLRequestFailedJob::AddUrlHandler();
     net::URLRequestSlowDownloadJob::AddUrlHandler();
 
     base::FilePath root_http;
     PathService::Get(chrome::DIR_TEST_DATA, &root_http);
     net::URLRequestMockHTTPJob::AddUrlHandlers(
         root_http, BrowserThread::GetBlockingPool());
   } else {
     // Revert to the default handlers.
     net::URLRequestFilter::GetInstance()->ClearHandlers();
   }
 }
 
 }  // namespace chrome_browser_net