Revert of Upgrade the windows specific version of LaunchProcess to avoid raw handles.

base/process/process_util_unittest.cc

Index: base/process/process_util_unittest.cc
diff --git a/base/process/process_util_unittest.cc b/base/process/process_util_unittest.cc
index af88fe1fd3a01f2ce3c10427e77b26645ba6eda8..c98884debcab328fb22ccddd6979198814cdde59 100644
--- a/base/process/process_util_unittest.cc
+++ b/base/process/process_util_unittest.cc
@@ -888,14 +888,14 @@
 }
 
 TEST_F(ProcessUtilTest, DelayedTermination) {
-  base::Process child_process(SpawnChild("process_util_test_never_die"));
-  ASSERT_TRUE(child_process.IsValid());
-  base::EnsureProcessTerminated(child_process.Duplicate());
-  base::WaitForSingleProcess(child_process.Handle(),
-                             base::TimeDelta::FromSeconds(5));
+  base::ProcessHandle child_process = SpawnChild("process_util_test_never_die");
+  ASSERT_TRUE(child_process);
+  base::EnsureProcessTerminated(child_process);
+  base::WaitForSingleProcess(child_process, base::TimeDelta::FromSeconds(5));
 
   // Check that process was really killed.
-  EXPECT_TRUE(IsProcessDead(child_process.Handle()));
+  EXPECT_TRUE(IsProcessDead(child_process));
+  base::CloseProcessHandle(child_process);
 }
 
 MULTIPROCESS_TEST_MAIN(process_util_test_never_die) {
@@ -906,14 +906,16 @@
 }
 
 TEST_F(ProcessUtilTest, ImmediateTermination) {
-  base::Process child_process(SpawnChild("process_util_test_die_immediately"));
-  ASSERT_TRUE(child_process.IsValid());
+  base::ProcessHandle child_process =
+      SpawnChild("process_util_test_die_immediately");
+  ASSERT_TRUE(child_process);
   // Give it time to die.
   sleep(2);
-  base::EnsureProcessTerminated(child_process.Duplicate());
+  base::EnsureProcessTerminated(child_process);
 
   // Check that process was really killed.
-  EXPECT_TRUE(IsProcessDead(child_process.Handle()));
+  EXPECT_TRUE(IsProcessDead(child_process));
+  base::CloseProcessHandle(child_process);
 }
 
 MULTIPROCESS_TEST_MAIN(process_util_test_die_immediately) {