libchromeos: Support setting uid/gid of child processes in process.h

chromeos/process_mock.h

 // Copyright (c) 2011 The Chromium OS 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 CHROMEOS_PROCESS_MOCK_H_
 #define CHROMEOS_PROCESS_MOCK_H_
 
 #include <string>
 
 #include <chromeos/process.h>
 #include <gmock/gmock.h>
 
 namespace chromeos {
 
 class ProcessMock : public Process {
  public:
   ProcessMock() {}
   virtual ~ProcessMock() {}
 
   MOCK_METHOD1(AddArg, void(const std::string& arg));
   MOCK_METHOD1(RedirectOutput, void(const std::string& output_file));
   MOCK_METHOD2(RedirectUsingPipe, void(int child_fd, bool is_input));
+  MOCK_METHOD1(SetUid, void(uid_t));
+  MOCK_METHOD1(SetGid, void(gid_t));
   MOCK_METHOD1(GetPipe, int(int child_fd));
   MOCK_METHOD0(Start, bool());
   MOCK_METHOD0(Wait, int());
   MOCK_METHOD0(Run, int());
   MOCK_METHOD0(pid, pid_t());
   MOCK_METHOD2(Kill, bool(int signal, int timeout));
   MOCK_METHOD1(Reset, void(pid_t));
   MOCK_METHOD1(ResetPidByFile, bool(const std::string& pid_file));
   MOCK_METHOD0(Release, pid_t());
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_PROCESS_MOCK_H_