Moves BackgroundShellApplicationLoader to shell/android

mojo/application_manager/background_shell_application_loader.h

-// 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.
-
-#ifndef MOJO_APPLICATION_MANAGER_BACKGROUND_SHELL_APPLICATION_LOADER_H_
-#define MOJO_APPLICATION_MANAGER_BACKGROUND_SHELL_APPLICATION_LOADER_H_
-
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/message_loop/message_loop.h"
-#include "base/synchronization/waitable_event.h"
-#include "base/threading/simple_thread.h"
-#include "mojo/application_manager/application_loader.h"
-
-namespace mojo {
-
-// TODO(tim): Eventually this should be Android-only to support services
-// that we need to bundle with the shell (such as NetworkService). Perhaps
-// we should move it to shell/ as well.
-class MOJO_APPLICATION_MANAGER_EXPORT BackgroundShellApplicationLoader
-    : public ApplicationLoader,
-      public base::DelegateSimpleThread::Delegate {
- public:
-  BackgroundShellApplicationLoader(scoped_ptr<ApplicationLoader> real_loader,
-                                   const std::string& thread_name,
-                                   base::MessageLoop::Type message_loop_type);
-  ~BackgroundShellApplicationLoader() override;
-
-  // ApplicationLoader overrides:
-  void Load(ApplicationManager* manager,
-            const GURL& url,
-            ScopedMessagePipeHandle shell_handle,
-            LoadCallback callback) override;
-  void OnApplicationError(ApplicationManager* manager,
-                          const GURL& url) override;
-
- private:
-  // |base::DelegateSimpleThread::Delegate| method:
-  void Run() override;
-
-  // These functions are exected on the background thread. They call through
-  // to |background_loader_| to do the actual loading.
-  // TODO: having this code take a |manager| is fragile (as ApplicationManager
-  // isn't thread safe).
-  void LoadOnBackgroundThread(ApplicationManager* manager,
-                              const GURL& url,
-                              ScopedMessagePipeHandle shell_handle);
-  void OnApplicationErrorOnBackgroundThread(ApplicationManager* manager,
-                                            const GURL& url);
-  bool quit_on_shutdown_;
-  scoped_ptr<ApplicationLoader> loader_;
-
-  const base::MessageLoop::Type message_loop_type_;
-  const std::string thread_name_;
-
-  // Created on |thread_| during construction of |this|. Protected against
-  // uninitialized use by |message_loop_created_|, and protected against
-  // use-after-free by holding a reference to the thread-safe object. Note
-  // that holding a reference won't hold |thread_| from exiting.
-  scoped_refptr<base::TaskRunner> task_runner_;
-  base::WaitableEvent message_loop_created_;
-
-  // Lives on |thread_|.
-  base::Closure quit_closure_;
-
-  scoped_ptr<base::DelegateSimpleThread> thread_;
-
-  DISALLOW_COPY_AND_ASSIGN(BackgroundShellApplicationLoader);
-};
-
-}  // namespace mojo
-
-#endif  // MOJO_APPLICATION_MANAGER_BACKGROUND_SHELL_APPLICATION_LOADER_H_