Salient parts of http://codereview.chromium.org/8392042/

content/test/test_browser_thread.cc

+// Copyright (c) 2011 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/test/test_browser_thread.h"
+
+namespace content {
+
+TestBrowserThread::TestBrowserThread(ID identifier)
+    : BrowserThreadImpl(identifier) {
+}
+
+TestBrowserThread::TestBrowserThread(ID identifier, MessageLoop* message_loop)
+    : BrowserThreadImpl(identifier, message_loop) {
+}
+
+TestBrowserThread::~TestBrowserThread() {
+}
+
+}  // namespace content