Bug 1879147 [wpt PR 44445] - allow old headless mode for chrome, a=testonly

Automatic update from web-platform-tests
allow old headless mode for chrome (#44445)

* allow old headless mode for chrome

While Wptrunner's '--headless' means the new headless mode, allow
passing binary arg '--headless' to chrome directly to enable the
old headless mode
--

wpt-commits: 09de1c20d1d31f66bb7174c896f0a63fb41b59b4
wpt-pr: 44445

Author: WeizhongX

testing/web-platform/tests/tools/wptrunner/wptrunner/browsers/chrome.py

@@ -147,7 +147,8 @@ def executor_kwargs(logger, test_type, test_environment, run_info_data,
     # Pass the --headless=new flag to Chrome if WPT's own --headless flag was
     # set. '--headless' should always mean the new headless mode, as the old
     # headless mode is not used anyway.
-    if kwargs["headless"] and "--headless=new" not in chrome_options["args"]:
+    if kwargs["headless"] and ("--headless=new" not in chrome_options["args"] and
+                               "--headless" not in chrome_options["args"]):
         chrome_options["args"].append("--headless=new")
 
     if test_type == "wdspec":