Add unittest that sandbox::PolicyBase outlives child process.

sandbox/win/src/policy_target_test.cc

 // Copyright (c) 2012 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 "base/memory/shared_memory.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_piece.h"
 #include "base/win/scoped_process_information.h"
 #include "base/win/windows_version.h"
 #include "sandbox/win/src/sandbox.h"
@@ skipping 196 matching lines @@
   EXPECT_EQ(SBOX_TEST_SUCCEEDED, runner.RunTest(L"PolicyTargetTest_thread2")) <<
       "Creates a new thread and opens it";
 }
 
 TEST(PolicyTargetTest, OpenProcess) {
   TestRunner runner;
   EXPECT_EQ(SBOX_TEST_SUCCEEDED, runner.RunTest(L"PolicyTargetTest_process")) <<
       "Opens a process";
 }
 
+TEST(PolicyTargetTest, PolicyBaseNoJobLifetime) {
+  TestRunner runner(JOB_NONE, USER_RESTRICTED_SAME_ACCESS, USER_LOCKDOWN);
+  runner.SetReleasePolicyInRun(true);
+  // TargetPolicy and its SharedMemIPCServer should continue to exist until
+  // the child process dies.
+  EXPECT_EQ(SBOX_TEST_SUCCEEDED, runner.RunTest(L"PolicyTargetTest_thread"))
+      << "Opens the current thread";
+}
+
 // Launches the app in the sandbox and ask it to wait in an
 // infinite loop. Waits for 2 seconds and then check if the
 // desktop associated with the app thread is not the same as the
 // current desktop.
 TEST(PolicyTargetTest, DesktopPolicy) {
   BrokerServices* broker = GetBroker();
 
   // Precreate the desktop.
   TargetPolicy* temp_policy = broker->CreatePolicy();
   temp_policy->CreateAlternateDesktop(false);
@@ skipping 180 matching lines @@
 
   EXPECT_EQ(static_cast<DWORD>(WAIT_TIMEOUT),
             ::WaitForSingleObject(target.process_handle(), 2000));
 
   EXPECT_TRUE(::TerminateProcess(target.process_handle(), 0));
 
   ::WaitForSingleObject(target.process_handle(), INFINITE);
 }
 
 }  // namespace sandbox