Minimal athena shell main

apps/shell/browser/default_shell_browser_main_delegate.h

Index: apps/shell/browser/default_shell_browser_main_delegate.h
diff --git a/apps/shell/browser/default_shell_browser_main_delegate.h b/apps/shell/browser/default_shell_browser_main_delegate.h
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+++ b/apps/shell/browser/default_shell_browser_main_delegate.h
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+// 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 APPS_SHELL_BROWSER_DEFAULT_SHELL_BROWSER_MAIN_DELEGATE_H_
+#define APPS_SHELL_BROWSER_DEFAULT_SHELL_BROWSER_MAIN_DELEGATE_H_
+
+#include "apps/shell/browser/shell_browser_main_delegate.h"
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+
+namespace apps {
+
+// A ShellBrowserMainDelegate that starts an application specified
+// by the "--app" command line. This is used only in the browser process.
+class DefaultShellBrowserMainDelegate : public ShellBrowserMainDelegate {
+ public:
+  DefaultShellBrowserMainDelegate();
+  virtual ~DefaultShellBrowserMainDelegate();
+
+  // ShellBrowserMainDelegate:
+  virtual void Start(content::BrowserContext* context) OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(DefaultShellBrowserMainDelegate);
+};
+
+}  // namespace apps
+
+#endif  // DEFAULT_SHELL_BROWSER_MAIN_DELEGATE_H_