Revert 232280 "Linux: add a Credentials class to handle Linux ca..."

trunk/src/sandbox/linux/services/credentials.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 SANDBOX_LINUX_SERVICES_CREDENTIALS_H_
-#define SANDBOX_LINUX_SERVICES_CREDENTIALS_H_
-
-#include "build/build_config.h"
-// Link errors are tedious to track, raise a compile-time error instead.
-#if defined(OS_ANDROID)
-#error "Android is not supported."
-#endif  // defined(OS_ANDROID).
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-
-namespace sandbox {
-
-// This class should be used to manipulate the current process' credentials.
-// It is currently a stub used to manipulate POSIX.1e capabilities as
-// implemented by the Linux kernel.
-class Credentials {
- public:
-  Credentials();
-  ~Credentials();
-
-  // Drop all capabilities in the effective, inheritable and permitted sets for
-  // the current process.
-  void DropAllCapabilities();
-  // Return true iff there is any capability in any of the capabilities sets
-  // of the current process.
-  bool HasAnyCapability();
-  // Returns the capabilities of the current process in textual form, as
-  // documented in libcap2's cap_to_text(3). This is mostly useful for
-  // debugging and tests.
-  scoped_ptr<std::string> GetCurrentCapString();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(Credentials);
-};
-
-}  // namespace sandbox.
-
-#endif  // SANDBOX_LINUX_SERVICES_CREDENTIALS_H_