ScopedProcessInformation protects against process/thread handle leaks from CreateProcess calls.

chrome/installer/util/delete_tree_work_item_unittest.cc

 // Copyright (c) 2011 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 <windows.h>
 
 #include <fstream>
 
 #include "base/base_paths.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/scoped_temp_dir.h"
 #include "base/string_util.h"
+#include "base/win/scoped_process_information.h"
 #include "chrome/installer/util/delete_tree_work_item.h"
 #include "chrome/installer/util/work_item.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
   class DeleteTreeWorkItemTest : public testing::Test {
    protected:
     virtual void SetUp() {
       ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     }
@@ skipping 155 matching lines @@
   FilePath exe_full_path(exe_full_path_str);
 
   file_util::CopyFile(exe_full_path, key_path);
   ASSERT_TRUE(file_util::PathExists(key_path));
 
   VLOG(1) << "copy ourself from " << exe_full_path.value()
           << " to " << key_path.value();
 
   // Run the key path file to keep it in use.
   STARTUPINFOW si = {sizeof(si)};
-  PROCESS_INFORMATION pi = {0};
+  base::win::ScopedProcessInformation pi;
   ASSERT_TRUE(
       ::CreateProcessW(NULL, const_cast<wchar_t*>(key_path.value().c_str()),
                        NULL, NULL, FALSE, CREATE_NO_WINDOW | CREATE_SUSPENDED,
-                       NULL, NULL, &si, &pi));
+                       NULL, NULL, &si, pi.Receive()));
 
   // test Do().
   {
     ScopedTempDir temp_dir;
     ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
 
     std::vector<FilePath> key_paths(1, key_path);
     scoped_ptr<DeleteTreeWorkItem> work_item(
         WorkItem::CreateDeleteTreeWorkItem(dir_name_delete, temp_dir.path(),
                                            key_paths));
 
     // delete should fail as file in use.
     EXPECT_FALSE(work_item->Do());
   }
 
   // verify everything is still there.
   EXPECT_TRUE(file_util::PathExists(key_path));
   EXPECT_TRUE(file_util::PathExists(file_name_delete_1));
   EXPECT_TRUE(file_util::PathExists(file_name_delete_2));
 
-  TerminateProcess(pi.hProcess, 0);
-  // make sure the handle is closed.
-  WaitForSingleObject(pi.hProcess, INFINITE);
+  TerminateProcess(pi.Get().hProcess, 0);
+  WaitForSingleObject(pi.Get().hProcess, INFINITE);
 }