favor DCHECK_CURRENTLY_ON for better logs in content/browser/[f-p]*

content/browser/frame_host/cross_site_transferring_request.cc

 // Copyright 2014 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 "content/browser/frame_host/cross_site_transferring_request.h"
 
 #include "base/logging.h"
 #include "content/browser/loader/cross_site_resource_handler.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace content {
 
 namespace {
 
 void CancelRequestOnIOThread(GlobalRequestID global_request_id) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   ResourceDispatcherHostImpl::Get()->CancelTransferringNavigation(
       global_request_id);
 }
 
 }  // namespace
 
 CrossSiteTransferringRequest::CrossSiteTransferringRequest(
     GlobalRequestID global_request_id)
     : global_request_id_(global_request_id) {
   DCHECK(global_request_id_ != GlobalRequestID());
 }
 
 CrossSiteTransferringRequest::~CrossSiteTransferringRequest() {
   if (global_request_id_ == GlobalRequestID())
     return;
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&CancelRequestOnIOThread, global_request_id_));
 }
 
 void CrossSiteTransferringRequest::ReleaseRequest() {
   DCHECK_NE(-1, global_request_id_.child_id);
   DCHECK_NE(-1, global_request_id_.request_id);
   global_request_id_ = GlobalRequestID();
 }
 
 }  // namespace content