Teach mojo_shell how to load http URLs

mojo/loader/url_request_context_getter.h

Index: mojo/loader/url_request_context_getter.h
diff --git a/mojo/loader/url_request_context_getter.h b/mojo/loader/url_request_context_getter.h
new file mode 100644
index 0000000000000000000000000000000000000000..2dab9dc7f38cb291912494fc7bd8c9537b54aae0
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+++ b/mojo/loader/url_request_context_getter.h
@@ -0,0 +1,43 @@
+// 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_URL_REQUEST_CONTEXT_GETTER_H_
+#define MOJO_URL_REQUEST_CONTEXT_GETTER_H_
+
+#include "base/files/file_path.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/message_loop/message_loop_proxy.h"
+#include "net/url_request/url_request_context_getter.h"
+#include "net/url_request/url_request_context_storage.h"
+
+namespace mojo {
+namespace loader {
+
+class URLRequestContextGetter : public net::URLRequestContextGetter {
+ public:
+  URLRequestContextGetter(
+      base::FilePath base_path,
+      base::SingleThreadTaskRunner* network_task_runner,
+      base::MessageLoopProxy* cache_task_runner);
+  virtual ~URLRequestContextGetter();
+
+  virtual net::URLRequestContext* GetURLRequestContext() OVERRIDE;
+  virtual scoped_refptr<base::SingleThreadTaskRunner>
+      GetNetworkTaskRunner() const OVERRIDE;
+
+ private:
+  base::FilePath base_path_;
+  scoped_refptr<base::SingleThreadTaskRunner> network_task_runner_;
+  scoped_refptr<base::MessageLoopProxy> cache_task_runner_;
+  scoped_ptr<net::NetLog> net_log_;
+  scoped_ptr<net::URLRequestContextStorage> storage_;
+  scoped_ptr<net::URLRequestContext> url_request_context_;
+
+  DISALLOW_COPY_AND_ASSIGN(URLRequestContextGetter);
+};
+
+}  // namespace loader
+}  // namespace mojo
+
+#endif  // MOJO_URL_REQUEST_CONTEXT_GETTER_H_