favor DCHECK_CURRENTLY_ON for better logs in extensions/

extensions/browser/guest_view/guest_view_message_filter.cc

 // Copyright 2015 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 "extensions/browser/guest_view/guest_view_message_filter.h"
 
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "extensions/browser/guest_view/guest_view_base.h"
@@ skipping 52 matching lines @@
     IPC_MESSAGE_HANDLER(GuestViewHostMsg_ResizeGuest, OnResizeGuest)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void GuestViewMessageFilter::OnAttachGuest(
     int element_instance_id,
     int guest_instance_id,
     const base::DictionaryValue& params) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   auto manager = GuestViewManager::FromBrowserContext(browser_context_);
   if (!manager)
     return;
 
   manager->AttachGuest(render_process_id_,
                        element_instance_id,
                        guest_instance_id,
                        params);
 }
 
 void GuestViewMessageFilter::OnCreateMimeHandlerViewGuest(
     int render_frame_id,
     const std::string& view_id,
     int element_instance_id,
     const gfx::Size& element_size) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   auto manager = GuestViewManager::FromBrowserContext(browser_context_);
   if (!manager)
     return;
 
   auto rfh = RenderFrameHost::FromID(render_process_id_, render_frame_id);
   auto embedder_web_contents = WebContents::FromRenderFrameHost(rfh);
   if (!embedder_web_contents)
     return;
 
   GuestViewManager::WebContentsCreatedCallback callback =
@@ skipping 59 matching lines @@
   manager->AttachGuest(embedder_render_process_id,
                        element_instance_id,
                        guest_instance_id,
                        attach_params);
 
   rfh->Send(
       new GuestViewMsg_CreateMimeHandlerViewGuestACK(element_instance_id));
 }
 
 }  // namespace extensions