favor DCHECK_CURRENTLY_ON for better logs in chrome/browser/chromeos/

chrome/browser/chromeos/drive/file_system/touch_operation.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 "chrome/browser/chromeos/drive/file_system/touch_operation.h"
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/sequenced_task_runner.h"
 #include "base/time/time.h"
@@ skipping 42 matching lines @@
       weak_ptr_factory_(this) {
 }
 
 TouchOperation::~TouchOperation() {
 }
 
 void TouchOperation::TouchFile(const base::FilePath& file_path,
                                const base::Time& last_access_time,
                                const base::Time& last_modified_time,
                                const FileOperationCallback& callback) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK(!callback.is_null());
 
   ResourceEntry* entry = new ResourceEntry;
   base::PostTaskAndReplyWithResult(
       blocking_task_runner_.get(), FROM_HERE,
       base::Bind(&UpdateLocalState, metadata_, file_path, last_access_time,
                  last_modified_time, entry),
       base::Bind(&TouchOperation::TouchFileAfterUpdateLocalState,
                  weak_ptr_factory_.GetWeakPtr(), file_path, callback,
                  base::Owned(entry)));
 }
 
 void TouchOperation::TouchFileAfterUpdateLocalState(
     const base::FilePath& file_path,
     const FileOperationCallback& callback,
     const ResourceEntry* entry,
     FileError error) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK(!callback.is_null());
 
   FileChange changed_files;
   changed_files.Update(
       file_path,
       entry->file_info().is_directory() ?
           FileChange::FILE_TYPE_DIRECTORY : FileChange::FILE_TYPE_FILE,
       FileChange::ADD_OR_UPDATE);
 
   if (error == FILE_ERROR_OK) {
     delegate_->OnFileChangedByOperation(changed_files);
     delegate_->OnEntryUpdatedByOperation(ClientContext(USER_INITIATED),
                                          entry->local_id());
   }
   callback.Run(error);
 }
 
 }  // namespace file_system
 }  // namespace drive