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

content/browser/frame_host/render_frame_message_filter.cc

 // Copyright 2013 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/render_frame_message_filter.h"
 
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/browser/renderer_host/render_widget_helper.h"
 #include "content/common/frame_messages.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace content {
 
 namespace {
 
 void CreateChildFrameOnUI(int process_id,
                           int parent_routing_id,
                           const std::string& frame_name,
                           SandboxFlags sandbox_flags,
                           int new_routing_id) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   RenderFrameHostImpl* render_frame_host =
       RenderFrameHostImpl::FromID(process_id, parent_routing_id);
   // Handles the RenderFrameHost being deleted on the UI thread while
   // processing a subframe creation message.
   if (render_frame_host) {
     render_frame_host->OnCreateChildFrame(new_routing_id, frame_name,
                                           sandbox_flags);
   }
 }
 
@@ skipping 25 matching lines @@
                                                   SandboxFlags sandbox_flags,
                                                   int* new_routing_id) {
   *new_routing_id = render_widget_helper_->GetNextRoutingID();
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&CreateChildFrameOnUI, render_process_id_, parent_routing_id,
                  frame_name, sandbox_flags, *new_routing_id));
 }
 
 }  // namespace content