Use the mojo::shell namespace consistently underly shell/.

shell/native_runner_unittest.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 "base/files/scoped_temp_dir.h"
 #include "shell/application_manager/application_manager.h"
 #include "shell/context.h"
 #include "shell/filename_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
+namespace shell {
 namespace {
 
 struct TestState {
   TestState()
       : runner_was_created(false),
         runner_was_started(false),
         runner_was_destroyed(false) {}
 
   bool runner_was_created;
   bool runner_was_started;
@@ skipping 70 matching lines @@
   InterfaceRequest<ServiceProvider> services;
   ServiceProviderPtr service_provider;
   application_manager_.ConnectToApplication(url, GURL(), services.Pass(),
                                             service_provider.Pass());
   EXPECT_FALSE(state_.runner_was_created);
   EXPECT_FALSE(state_.runner_was_started);
   EXPECT_FALSE(state_.runner_was_destroyed);
 }
 
 }  // namespace
+}  // namespace shell
 }  // namespace mojo