Teach mojo_shell how to load http URLs

mojo/loader/loader.h

+// 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 "url/gurl.h"
+
+namespace mojo {
+namespace loader {
+
+class Loader {
+ public:
+  class Delegate {
+   public:
+    virtual void DidCompleteLoad(const GURL& app_url) = 0;
+
+   protected:
+    virtual ~Delegate();
+  };
+
+  Loader(base::SingleThreadTaskRunner* network_runner,
+         base::FilePath base_path);
+  ~Loader();
+
+  void Load(const GURL& app_url, Delegate* delegate);
+
+ private:
+  class Data;
+
+  scoped_ptr<Data> data_;
+
+  DISALLOW_COPY_AND_ASSIGN(Loader);
+};
+
+}  // namespace loader
+}  // namespace mojo
+
+#endif  // MOJO_LOADER_LOADER_H_