Ensure tests check the return of SpawnChild() when they may wait without timeouts

content/common/process_watcher_unittest.cc

Index: content/common/process_watcher_unittest.cc
diff --git a/content/common/process_watcher_unittest.cc b/content/common/process_watcher_unittest.cc
index 260075bf653fcf5c42f38681b7ff36a975180316..f1890ad385674f1384aa7c8d543b6c6fa417dd3d 100644
--- a/content/common/process_watcher_unittest.cc
+++ b/content/common/process_watcher_unittest.cc
@@ -31,6 +31,7 @@ bool IsProcessDead(base::ProcessHandle child) {
 TEST_F(ProcessWatcherTest, DelayedTermination) {
   base::ProcessHandle child_process =
       SpawnChild("process_watcher_test_never_die", false);
+  ASSERT_TRUE(child_process);
   ProcessWatcher::EnsureProcessTerminated(child_process);
   base::WaitForSingleProcess(child_process, 5000);
 
@@ -49,6 +50,7 @@ MULTIPROCESS_TEST_MAIN(process_watcher_test_never_die) {
 TEST_F(ProcessWatcherTest, ImmediateTermination) {
   base::ProcessHandle child_process =
       SpawnChild("process_watcher_test_die_immediately", false);
+  ASSERT_TRUE(child_process);
   // Give it time to die.
   sleep(2);
   ProcessWatcher::EnsureProcessTerminated(child_process);