MultiProcessTest: Update SpawnChild* to return a Process.

chrome/common/multi_process_lock_unittest.cc

Index: chrome/common/multi_process_lock_unittest.cc
diff --git a/chrome/common/multi_process_lock_unittest.cc b/chrome/common/multi_process_lock_unittest.cc
index 773b66e334bb0fdc11853d4dd3fa16289f75950a..9158cec75b9ad094c39bb058493ec2bebe54eec0 100644
--- a/chrome/common/multi_process_lock_unittest.cc
+++ b/chrome/common/multi_process_lock_unittest.cc
@@ -51,20 +51,20 @@ std::string MultiProcessLockTest::GenerateLockName() {
 
 void MultiProcessLockTest::ExpectLockIsLocked(const std::string &name) {
   ScopedEnvironmentVariable var(kLockEnviromentVarName, name);
-  base::ProcessHandle handle = SpawnChild("MultiProcessLockTryFailMain");
-  ASSERT_TRUE(handle);
+  base::Process process = SpawnChild("MultiProcessLockTryFailMain");
+  ASSERT_TRUE(process.IsValid());
   int exit_code = 0;
-  EXPECT_TRUE(base::WaitForExitCode(handle, &exit_code));
+  EXPECT_TRUE(process.WaitForExit(&exit_code));
   EXPECT_EQ(exit_code, 0);
 }
 
 void MultiProcessLockTest::ExpectLockIsUnlocked(
     const std::string &name) {
   ScopedEnvironmentVariable var(kLockEnviromentVarName, name);
-  base::ProcessHandle handle = SpawnChild("MultiProcessLockTrySucceedMain");
-  ASSERT_TRUE(handle);
+  base::Process process = SpawnChild("MultiProcessLockTrySucceedMain");
+  ASSERT_TRUE(process.IsValid());
   int exit_code = 0;
-  EXPECT_TRUE(base::WaitForExitCode(handle, &exit_code));
+  EXPECT_TRUE(process.WaitForExit(&exit_code));
   EXPECT_EQ(exit_code, 0);
 }