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

content/shell/browser/layout_test/layout_test_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/shell/browser/layout_test/layout_test_message_filter.h"
 
 #include "base/files/file_util.h"
 #include "base/threading/thread_restrictions.h"
 #include "content/public/browser/child_process_security_policy.h"
 #include "content/shell/browser/layout_test/layout_test_browser_context.h"
@@ skipping 82 matching lines @@
     files.AddPath(absolute_filenames[i], NULL);
     if (!policy->CanReadFile(render_process_id_, absolute_filenames[i]))
       policy->GrantReadFile(render_process_id_, absolute_filenames[i]);
   }
   *filesystem_id =
       storage::IsolatedContext::GetInstance()->RegisterDraggedFileSystem(files);
   policy->GrantReadFileSystem(render_process_id_, *filesystem_id);
 }
 
 void LayoutTestMessageFilter::OnClearAllDatabases() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
+  DCHECK_CURRENTLY_ON(BrowserThread::FILE);
   database_tracker_->DeleteDataModifiedSince(
       base::Time(), net::CompletionCallback());
 }
 
 void LayoutTestMessageFilter::OnSetDatabaseQuota(int quota) {
   quota_manager_->SetTemporaryGlobalOverrideQuota(
       quota * storage::QuotaManager::kPerHostTemporaryPortion,
       storage::QuotaCallback());
 }
 
@@ skipping 44 matching lines @@
   ShellNetworkDelegate::SetAcceptAllCookies(accept);
 }
 
 void LayoutTestMessageFilter::OnDeleteAllCookies() {
   request_context_getter_->GetURLRequestContext()->cookie_store()
       ->GetCookieMonster()
       ->DeleteAllAsync(net::CookieMonster::DeleteCallback());
 }
 
 }  // namespace content