Teach mojo_shell how to load http URLs

mojo/loader/loader.h

Index: mojo/loader/loader.h
diff --git a/mojo/loader/loader.h b/mojo/loader/loader.h
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+// Copyright (c) 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_LOADER_LOADER_H_
+#define MOJO_LOADER_LOADER_H_
+
+#include "base/files/file_path.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/single_thread_task_runner.h"
+#include "mojo/loader/job.h"
+#include "url/gurl.h"
+
+namespace mojo {
+namespace loader {
+
+class Loader {
+ public:
+  Loader(base::SingleThreadTaskRunner* network_runner,
+         base::FilePath base_path);
+  ~Loader();
+
+  scoped_ptr<Job> Load(const GURL& app_url, Job::Delegate* delegate);
+
+ private:
+  class Data;
+
+  scoped_ptr<Data> data_;
+
+  DISALLOW_COPY_AND_ASSIGN(Loader);
+};
+
+}  // namespace loader
+}  // namespace mojo
+
+#endif  // MOJO_LOADER_LOADER_H_