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

chrome/browser/net/url_request_mock_util.cc

Index: chrome/browser/net/url_request_mock_util.cc
diff --git a/chrome/browser/net/url_request_mock_util.cc b/chrome/browser/net/url_request_mock_util.cc
index 8b6f0802c57e91b7da7d29f594954b41931b59f8..7c0d96ff5396db2edf766369e5b388175ad4a394 100644
--- a/chrome/browser/net/url_request_mock_util.cc
+++ b/chrome/browser/net/url_request_mock_util.cc
@@ -22,7 +22,7 @@ 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