Removes example code that isn't correctly wired up

mash/login/login.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 "mash/login/login.h"
-
-#include <map>
-#include <memory>
-
-#include "ash/public/cpp/shell_window_ids.h"
-#include "base/guid.h"
-#include "base/macros.h"
-#include "base/memory/ptr_util.h"
-#include "base/message_loop/message_loop.h"
-#include "base/strings/utf_string_conversions.h"
-#include "mash/common/config.h"
-#include "mash/init/public/interfaces/constants.mojom.h"
-#include "mash/init/public/interfaces/init.mojom.h"
-#include "mash/login/public/interfaces/login.mojom.h"
-#include "mojo/public/cpp/bindings/binding_set.h"
-#include "services/service_manager/public/cpp/connector.h"
-#include "services/service_manager/public/cpp/interface_factory.h"
-#include "services/service_manager/public/cpp/interface_registry.h"
-#include "services/service_manager/public/cpp/service.h"
-#include "services/service_manager/public/cpp/service_context.h"
-#include "services/tracing/public/cpp/provider.h"
-#include "services/ui/public/cpp/property_type_converters.h"
-#include "services/ui/public/interfaces/constants.mojom.h"
-#include "services/ui/public/interfaces/user_access_manager.mojom.h"
-#include "services/ui/public/interfaces/window_manager.mojom.h"
-#include "ui/views/background.h"
-#include "ui/views/controls/button/md_text_button.h"
-#include "ui/views/mus/aura_init.h"
-#include "ui/views/mus/native_widget_mus.h"
-#include "ui/views/mus/window_manager_connection.h"
-#include "ui/views/widget/widget_delegate.h"
-
-namespace mash {
-namespace login {
-namespace {
-
-class Login;
-
-class UI : public views::WidgetDelegateView,
-           public views::ButtonListener {
- public:
-  static void Show(service_manager::Connector* connector,
-                   const service_manager::Identity& identity,
-                   Login* login) {
-    UI* ui = new UI(login, connector);
-    ui->StartWindowManager(identity);
-
-    views::Widget* widget = new views::Widget;
-    views::Widget::InitParams params(
-        views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
-    params.delegate = ui;
-
-    std::map<std::string, std::vector<uint8_t>> properties;
-    properties[ui::mojom::WindowManager::kContainerId_InitProperty] =
-        mojo::ConvertTo<std::vector<uint8_t>>(
-            ash::kShellWindowId_LockScreenContainer);
-    ui::Window* window =
-        views::WindowManagerConnection::Get()->NewTopLevelWindow(properties);
-    params.native_widget = new views::NativeWidgetMus(
-        widget, window, ui::mojom::CompositorFrameSinkType::DEFAULT);
-    widget->Init(params);
-    widget->Show();
-  }
-
- private:
-  UI(Login* login, service_manager::Connector* connector)
-      : login_(login),
-        connector_(connector),
-        user_id_1_("00000000-0000-4000-8000-000000000000"),
-        user_id_2_("00000000-0000-4000-8000-000000000001"),
-        login_button_1_(
-            views::MdTextButton::Create(this, base::ASCIIToUTF16("Timothy"))),
-        login_button_2_(
-            views::MdTextButton::Create(this, base::ASCIIToUTF16("Jimothy"))) {
-    set_background(views::Background::CreateSolidBackground(SK_ColorRED));
-    AddChildView(login_button_1_);
-    AddChildView(login_button_2_);
-  }
-  ~UI() override {
-    // Prevent the window manager from restarting during graceful shutdown.
-    mash_wm_connection_->SetConnectionLostClosure(base::Closure());
-    base::MessageLoop::current()->QuitWhenIdle();
-  }
-
-  // Overridden from views::WidgetDelegate:
-  base::string16 GetWindowTitle() const override {
-    // TODO(beng): use resources.
-    return base::ASCIIToUTF16("Login");
-  }
-  void DeleteDelegate() override { delete this; }
-
-  // Overridden from views::View:
-  void Layout() override {
-    gfx::Rect button_box = GetLocalBounds();
-    button_box.Inset(10, 10);
-
-    gfx::Size ps1 = login_button_1_->GetPreferredSize();
-    gfx::Size ps2 = login_button_2_->GetPreferredSize();
-
-    DCHECK(ps1.height() == ps2.height());
-
-    // The 10 is inter-button spacing.
-    button_box.set_x((button_box.width() - ps1.width() - ps2.width() - 10) / 2);
-    button_box.set_y((button_box.height() - ps1.height()) / 2);
-
-    login_button_1_->SetBounds(button_box.x(), button_box.y(), ps1.width(),
-                               ps1.height());
-    login_button_2_->SetBounds(login_button_1_->bounds().right() + 10,
-                               button_box.y(), ps2.width(), ps2.height());
-  }
-
-  // Overridden from views::ButtonListener:
-  void ButtonPressed(views::Button* sender, const ui::Event& event) override;
-
-  void StartWindowManager(const service_manager::Identity& identity) {
-    mash_wm_connection_ =
-        connector_->Connect(common::GetWindowManagerServiceName());
-    mash_wm_connection_->SetConnectionLostClosure(
-        base::Bind(&UI::StartWindowManager, base::Unretained(this), identity));
-    window_manager_connection_ =
-        views::WindowManagerConnection::Create(connector_, identity);
-  }
-
-  Login* login_;
-  service_manager::Connector* connector_;
-  const std::string user_id_1_;
-  const std::string user_id_2_;
-  views::MdTextButton* login_button_1_;
-  views::MdTextButton* login_button_2_;
-  std::unique_ptr<service_manager::Connection> mash_wm_connection_;
-  std::unique_ptr<views::WindowManagerConnection> window_manager_connection_;
-
-  DISALLOW_COPY_AND_ASSIGN(UI);
-};
-
-class Login : public service_manager::Service,
-              public service_manager::InterfaceFactory<mojom::Login>,
-              public mojom::Login {
- public:
-   Login() {}
-  ~Login() override {}
-
-  void LoginAs(const std::string& user_id) {
-    user_access_manager_->SetActiveUser(user_id);
-    mash::init::mojom::InitPtr init;
-    context()->connector()->ConnectToInterface(init::mojom::kServiceName,
-                                               &init);
-    init->StartService("mash_session", user_id);
-  }
-
- private:
-  // service_manager::Service:
-  void OnStart() override {
-    tracing_.Initialize(context()->connector(), context()->identity().name());
-
-    aura_init_ = base::MakeUnique<views::AuraInit>(
-        context()->connector(), context()->identity(),
-        "views_mus_resources.pak");
-
-    context()->connector()->ConnectToInterface(ui::mojom::kServiceName,
-                                               &user_access_manager_);
-    user_access_manager_->SetActiveUser(context()->identity().user_id());
-  }
-
-  bool OnConnect(const service_manager::ServiceInfo& remote_info,
-                 service_manager::InterfaceRegistry* registry) override {
-    registry->AddInterface<mojom::Login>(this);
-    return true;
-  }
-
-  // service_manager::InterfaceFactory<mojom::Login>:
-  void Create(const service_manager::Identity& remote_identity,
-              mojom::LoginRequest request) override {
-    bindings_.AddBinding(this, std::move(request));
-  }
-
-  // mojom::Login:
-  void ShowLoginUI() override {
-    UI::Show(context()->connector(), context()->identity(), this);
-  }
-  void SwitchUser() override {
-    UI::Show(context()->connector(), context()->identity(), this);
-  }
-
-  void StartWindowManager();
-
-  tracing::Provider tracing_;
-  std::unique_ptr<views::AuraInit> aura_init_;
-  mojo::BindingSet<mojom::Login> bindings_;
-  ui::mojom::UserAccessManagerPtr user_access_manager_;
-
-  DISALLOW_COPY_AND_ASSIGN(Login);
-};
-
-void UI::ButtonPressed(views::Button* sender, const ui::Event& event) {
-  // Login...
-  if (sender == login_button_1_) {
-    login_->LoginAs(user_id_1_);
-  } else if (sender == login_button_2_) {
-    login_->LoginAs(user_id_2_);
-  } else {
-    NOTREACHED();
-  }
-  GetWidget()->Close();
-}
-
-}  // namespace
-
-service_manager::Service* CreateLogin() {
-  return new Login;
-}
-
-}  // namespace login
-}  // namespace main