Changing multiprocess test SpawnChild to return a struct.

chrome/installer/setup/setup_singleton_unittest.cc

Index: chrome/installer/setup/setup_singleton_unittest.cc
diff --git a/chrome/installer/setup/setup_singleton_unittest.cc b/chrome/installer/setup/setup_singleton_unittest.cc
index 60c69a9f1a498e0d14678981882738669454c440..b6459cfb3287185a2e744fe3d224326cd1347ee1 100644
--- a/chrome/installer/setup/setup_singleton_unittest.cc
+++ b/chrome/installer/setup/setup_singleton_unittest.cc
@@ -140,7 +140,9 @@ class SetupSingletonTest : public base::MultiProcessTest {
   base::Process SpawnChildProcess(const std::string& process_name) {
     base::LaunchOptions options;
     options.start_hidden = true;
-    return SpawnChildWithOptions(process_name, options);
+    base::SpawnChildResult spawn_result =
+        SpawnChildWithOptions(process_name, options);
+    return std::move(spawn_result.process);
   }
 
   const base::FilePath& install_dir_path() const {