Move shell service to toplevel shell namespace

components/mus/ws/test_utils.cc

 // Copyright 2016 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 "components/mus/ws/test_utils.h"
 
 #include "cc/output/copy_output_request.h"
 #include "components/mus/surfaces/surfaces_state.h"
 #include "components/mus/ws/display_binding.h"
 #include "components/mus/ws/window_manager_access_policy.h"
@@ skipping 111 matching lines @@
   for (const auto& pair : ed_->pointer_targets_)
     if (pair.second.window == window)
       count++;
   return count;
 }
 
 // TestDisplayBinding ---------------------------------------------------------
 
 WindowTree* TestDisplayBinding::CreateWindowTree(ServerWindow* root) {
   return window_server_->EmbedAtWindow(
-      root, mojo::shell::mojom::kRootUserID, mus::mojom::WindowTreeClientPtr(),
+      root, shell::mojom::kRootUserID, mus::mojom::WindowTreeClientPtr(),
       make_scoped_ptr(new WindowManagerAccessPolicy));
 }
 
 // TestWindowManager ----------------------------------------------------------
 
 void TestWindowManager::WmCreateTopLevelWindow(
     uint32_t change_id,
     mojo::Map<mojo::String, mojo::Array<uint8_t>> properties) {
   got_create_top_level_window_ = true;
   change_id_ = change_id;
@@ skipping 220 matching lines @@
     return nullptr;
   if (!tree->AddWindow(parent_client_id, client_window_id))
     return nullptr;
   *client_id = client_window_id;
   return tree->GetWindowByClientId(client_window_id);
 }
 
 }  // namespace test
 }  // namespace ws
 }  // namespace mus