Mojo: Use network service to load non-local Mojo Apps.

mojo/shell/loader.h

-// Copyright 2013 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_SHELL_LOADER_H_
-#define MOJO_SHELL_LOADER_H_
-
-#include "base/files/file_path.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/single_thread_task_runner.h"
-#include "base/threading/thread.h"
-#include "mojo/shell/url_request_context_getter.h"
-#include "net/url_request/url_fetcher.h"
-#include "net/url_request/url_fetcher_delegate.h"
-#include "url/gurl.h"
-
-namespace net {
-class NetworkDelegate;
-}
-
-namespace mojo {
-namespace shell {
-
-class Loader {
- public:
-  class Delegate {
-   public:
-    // |mime_type| is NULL if a mime type was not specified.
-    virtual void DidCompleteLoad(const GURL& app_url,
-                                 const base::FilePath& app_path,
-                                 const std::string* mime_type) = 0;
-
-   protected:
-    virtual ~Delegate();
-  };
-
-  class Job : public net::URLFetcherDelegate {
-   public:
-    // You can cancel a job by deleting it.
-    virtual ~Job();
-
-   private:
-    friend class Loader;
-
-    // You can create a job using Loader::Load.
-    Job(const GURL& app_url, Delegate* delegate);
-    virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
-
-    scoped_ptr<net::URLFetcher> fetcher_;
-    Delegate* delegate_;
-
-    DISALLOW_COPY_AND_ASSIGN(Job);
-  };
-
-  Loader(base::SingleThreadTaskRunner* network_runner,
-         base::SingleThreadTaskRunner* file_runner,
-         base::MessageLoopProxy* cache_runner,
-         scoped_ptr<net::NetworkDelegate> network_delegate,
-         base::FilePath base_path);
-  ~Loader();
-
-  scoped_ptr<Job> Load(const GURL& app_url, Delegate* delegate);
-
- private:
-  scoped_refptr<base::SingleThreadTaskRunner> file_runner_;
-  scoped_refptr<URLRequestContextGetter> url_request_context_getter_;
-
-  DISALLOW_COPY_AND_ASSIGN(Loader);
-};
-
-}  // namespace shell
-}  // namespace mojo
-
-#endif  // MOJO_SHELL_LOADER_H_