Clean up users of a deprecated base::LaunchApp API.

chrome/test/live_sync/live_sync_test.cc

Index: chrome/test/live_sync/live_sync_test.cc
diff --git a/chrome/test/live_sync/live_sync_test.cc b/chrome/test/live_sync/live_sync_test.cc
index 3eeb6a0058da99a30f947c9c966d851612dbcd57..920c89b5aa29304ca12d552118e12faba7981ead 100644
--- a/chrome/test/live_sync/live_sync_test.cc
+++ b/chrome/test/live_sync/live_sync_test.cc
@@ -406,7 +406,12 @@ bool LiveSyncTest::SetUpLocalTestServer() {
   CommandLine::StringType delimiters(FILE_PATH_LITERAL(" "));
   Tokenize(server_cmdline_string, delimiters, &server_cmdline_vector);
   CommandLine server_cmdline(server_cmdline_vector);
-  if (!base::LaunchApp(server_cmdline, false, true, &test_server_handle_))
+  base::LaunchOptions options;
+#if defined(OS_WIN)
+  options.start_hidden = true;
+#endif
+  options.process_handle = &test_server_handle_;
+  if (!base::LaunchProcess(server_cmdline, options))
     LOG(ERROR) << "Could not launch local test server.";
 
   const int kMaxWaitTime = TestTimeouts::live_operation_timeout_ms();