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

trunk/src/sandbox/linux/services/credentials.cc

-// 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.
-
-#include "sandbox/linux/services/credentials.h"
-
-#include <stdio.h>
-#include <sys/capability.h>
-
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-namespace {
-
-struct CapFreeDeleter {
-  inline void operator()(cap_t cap) const {
-    int ret = cap_free(cap);
-    CHECK_EQ(0, ret);
-  }
-};
-
-// Wrapper to manage libcap2's cap_t type.
-typedef scoped_ptr<typeof(*((cap_t)0)), CapFreeDeleter> ScopedCap;
-
-struct CapTextFreeDeleter {
-  inline void operator()(char* cap_text) const {
-    int ret = cap_free(cap_text);
-    CHECK_EQ(0, ret);
-  }
-};
-
-// Wrapper to manage the result from libcap2's cap_from_text().
-typedef scoped_ptr<char, CapTextFreeDeleter> ScopedCapText;
-
-}  // namespace.
-
-namespace sandbox {
-
-Credentials::Credentials() {
-}
-
-Credentials::~Credentials() {
-}
-
-void Credentials::DropAllCapabilities() {
-  ScopedCap cap(cap_init());
-  CHECK(cap);
-  PCHECK(0 == cap_set_proc(cap.get()));
-}
-
-bool Credentials::HasAnyCapability() {
-  ScopedCap current_cap(cap_get_proc());
-  CHECK(current_cap);
-  ScopedCap empty_cap(cap_init());
-  CHECK(empty_cap);
-  return cap_compare(current_cap.get(), empty_cap.get()) != 0;
-}
-
-scoped_ptr<std::string> Credentials::GetCurrentCapString() {
-  ScopedCap current_cap(cap_get_proc());
-  CHECK(current_cap);
-  ScopedCapText cap_text(cap_to_text(current_cap.get(), NULL));
-  CHECK(cap_text);
-  return scoped_ptr<std::string> (new std::string(cap_text.get()));
-}
-
-}  // namespace sandbox.