Changing multiprocess test SpawnChild to return a struct.

content/browser/mach_broker_mac_unittest.cc

Index: content/browser/mach_broker_mac_unittest.cc
diff --git a/content/browser/mach_broker_mac_unittest.cc b/content/browser/mach_broker_mac_unittest.cc
index 261f500a5635d4474e182b679aa9dc858007ddd5..83575d1e8fa8b46af62ce6847ae738b4b0070c2e 100644
--- a/content/browser/mach_broker_mac_unittest.cc
+++ b/content/browser/mach_broker_mac_unittest.cc
@@ -45,9 +45,10 @@ class MachBrokerTest : public testing::Test,
   base::Process LaunchTestChild(const std::string& function,
                                 int child_process_id) {
     base::AutoLock lock(broker_.GetLock());
-    base::Process test_child_process = base::SpawnMultiProcessTestChild(
+    base::SpawnChildResult spaw_result = base::SpawnMultiProcessTestChild(
         function, base::GetMultiProcessTestChildBaseCommandLine(),
         base::LaunchOptions());
+    base::Process test_child_process = std::move(spaw_result.process);
     broker_.AddPlaceholderForPid(test_child_process.Handle(), child_process_id);
     return test_child_process;
   }