chrome/installer/util/scoped_user_protocol_entry.h

// Copyright 2015 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 CHROME_INSTALLER_UTIL_SCOPED_USER_PROTOCOL_ENTRY_H_
#define CHROME_INSTALLER_UTIL_SCOPED_USER_PROTOCOL_ENTRY_H_

#include "base/macros.h"
#include "base/memory/scoped_vector.h"

class RegistryEntry;

// Windows 8 shows the "No apps are installed to open this type of link(http)"
// dialog when choosing default browser under certain circumstances. Under
// these circumstances, it appears that ensuring the existance of the
// HKCU\Software\Classes\http key with an empty "URL Protocol" value is
// sufficient to make the dialog contain the usual list of registered browsers.
// This class creates this key and value in its constructor if needed, and
// cleans them up in its destructor if no other values or subkeys were created
// in the meantime. For details, see https://crbug.com/569151.
class ScopedUserProtocolEntry {
 public:
  ScopedUserProtocolEntry();
  ~ScopedUserProtocolEntry();

 private:
  ScopedVector<RegistryEntry> entries_;

  DISALLOW_COPY_AND_ASSIGN(ScopedUserProtocolEntry);
};

#endif  // CHROME_INSTALLER_UTIL_SCOPED_USER_PROTOCOL_ENTRY_H_