Changing multiprocess test SpawnChild to return a struct.

components/browser_watcher/exit_code_watcher_win_unittest.cc

Index: components/browser_watcher/exit_code_watcher_win_unittest.cc
diff --git a/components/browser_watcher/exit_code_watcher_win_unittest.cc b/components/browser_watcher/exit_code_watcher_win_unittest.cc
index 9c1a0741b940f634832f71eca7c6a7595aafb36e..f3a3721a0620c199fbb22ba421978c835beed4a6 100644
--- a/components/browser_watcher/exit_code_watcher_win_unittest.cc
+++ b/components/browser_watcher/exit_code_watcher_win_unittest.cc
@@ -53,7 +53,9 @@ class ScopedSleeperProcess {
     base::CommandLine cmd_line(base::GetMultiProcessTestChildBaseCommandLine());
     base::LaunchOptions options;
     options.start_hidden = true;
-    process_ = base::SpawnMultiProcessTestChild("Sleeper", cmd_line, options);
+    base::SpawnChildResult spawn_result =
+        base::SpawnMultiProcessTestChild("Sleeper", cmd_line, options);
+    process_ = std::move(spawn_result.process);
     ASSERT_TRUE(process_.IsValid());
   }