Rename shell namespace to service_manager

ash/mus/window_manager_unittest.cc

 // Copyright 2015 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 <memory>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "services/service_manager/public/cpp/service_test.h"
 #include "services/ui/public/cpp/window.h"
@@ skipping 13 matching lines @@
   // ui::WindowTreeClientDelegate:
   void OnEmbed(ui::Window* root) override {}
   void OnEmbedRootDestroyed(ui::Window* root) override {}
   void OnLostConnection(ui::WindowTreeClient* client) override {}
   void OnPointerEventObserved(const ui::PointerEvent& event,
                               ui::Window* target) override {}
 
   DISALLOW_COPY_AND_ASSIGN(WindowTreeClientDelegate);
 };
 
-class WindowManagerTest : public shell::test::ServiceTest {
+class WindowManagerTest : public service_manager::test::ServiceTest {
  public:
-  WindowManagerTest() : shell::test::ServiceTest("exe:mash_unittests") {}
+  WindowManagerTest()
+      : service_manager::test::ServiceTest("exe:mash_unittests") {}
   ~WindowManagerTest() override {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WindowManagerTest);
 };
 
 void OnEmbed(bool success) {
   ASSERT_TRUE(success);
 }
 
@@ skipping 19 matching lines @@
   auto tree_client_request = GetProxy(&tree_client);
   child_window->Embed(std::move(tree_client), base::Bind(&OnEmbed));
   std::unique_ptr<ui::WindowTreeClient> child_client(new ui::WindowTreeClient(
       &window_tree_delegate, nullptr, std::move(tree_client_request)));
   child_client->WaitForEmbed();
   ASSERT_TRUE(!child_client->GetRoots().empty());
 }
 
 }  // namespace mus
 }  // namespace ash