Put code in //services/js in namespace js

services/js/test/js_application_test_base.cc

 // Copyright 2014 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 "services/js/test/js_application_test_base.h"
 
-namespace mojo {
+namespace js {
 namespace test {
 
 JSApplicationTestBase::JSApplicationTestBase() {}
 JSApplicationTestBase::~JSApplicationTestBase() {}
 
 const std::string JSApplicationTestBase::JSAppURL(const std::string& filename) {
   base::FilePath path;
   PathService::Get(base::DIR_SOURCE_ROOT, &path);
   path = path.AppendASCII("services")
       .AppendASCII("js")
       .AppendASCII("test")
       .AppendASCII(filename);
   return "file://" + path.AsUTF8Unsafe();
 }
 
 }  // namespace test
 }  // namespace mojo