Changing multiprocess test SpawnChild to return a struct.

sandbox/mac/xpc_message_server_unittest.cc

 // Copyright 2014 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 "sandbox/mac/xpc_message_server.h"
 
 #include <Block.h>
 #include <mach/mach.h>
 #include <servers/bootstrap.h>
 #include <stdint.h>
@@ skipping 129 matching lines @@
       child_pid = xpc_dictionary_get_int64(request.xpc, "child_pid");
   }));
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
   kern_return_t kr = bootstrap_register(bootstrap_port, kGetSenderPID,
       server->GetServerPort());
 #pragma GCC diagnostic pop
   ASSERT_EQ(KERN_SUCCESS, kr);
 
-  base::Process child = base::SpawnMultiProcessTestChild(
-      "GetSenderPID",
-      base::GetMultiProcessTestChildBaseCommandLine(),
+  base::SpawnChildResult spawn_result = base::SpawnMultiProcessTestChild(
+      "GetSenderPID", base::GetMultiProcessTestChildBaseCommandLine(),
       base::LaunchOptions());
+  base::Process child = std::move(spawn_result.process);
   ASSERT_TRUE(child.IsValid());
 
   int exit_code = -1;
   ASSERT_TRUE(child.WaitForExit(&exit_code));
   EXPECT_EQ(0, exit_code);
 
   EXPECT_EQ(child.Pid(), sender_pid);
   EXPECT_EQ(child.Pid(), child_pid);
   EXPECT_EQ(sender_pid, child_pid);
 }
@@ skipping 40 matching lines @@
   ASSERT_EQ(0, xpc_pipe_routine(first.pipe(), request, &reply));
 
   EXPECT_EQ(1, xpc_dictionary_get_int64(reply, "seen_by_first"));
   EXPECT_EQ(2, xpc_dictionary_get_int64(reply, "seen_by_second"));
 
   xpc_release(request);
   xpc_release(reply);
 }
 
 }  // namespace sandbox