favor DCHECK_CURRENTLY_ON for better logs in content/{public,shell,test}/

content/test/net/url_request_abort_on_end_job.cc

Index: content/test/net/url_request_abort_on_end_job.cc
diff --git a/content/test/net/url_request_abort_on_end_job.cc b/content/test/net/url_request_abort_on_end_job.cc
index c7b51615b8ed46f8d1941c82d67362a7ff7ff039..02c095f586ccfc8c8c30ae9ce100839c534d97e3 100644
--- a/content/test/net/url_request_abort_on_end_job.cc
+++ b/content/test/net/url_request_abort_on_end_job.cc
@@ -26,12 +26,12 @@ net::URLRequestJob* JobFactory(
     net::URLRequest* request,
     net::NetworkDelegate* network_delegate,
     const std::string& scheme) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
   return new URLRequestAbortOnEndJob(request, network_delegate);
 }
 
 void AddUrlHandlerOnIOThread() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
   net::URLRequestFilter* filter = net::URLRequestFilter::GetInstance();
   filter->AddUrlHandler(GURL(URLRequestAbortOnEndJob::k400AbortOnEndUrl),
                         &JobFactory);