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-rw-r--r--chromium/testing/scripts/common.py5
1 files changed, 4 insertions, 1 deletions
diff --git a/chromium/testing/scripts/common.py b/chromium/testing/scripts/common.py
index da3e34462b1..d4364525f7d 100644
--- a/chromium/testing/scripts/common.py
+++ b/chromium/testing/scripts/common.py
@@ -92,6 +92,9 @@ def run_command_with_output(argv, stdoutfile, env=None, cwd=None):
def run_runtest(cmd_args, runtest_args):
+ env = os.environ.copy()
+ env['CHROME_HEADLESS'] = '1'
+
if cmd_args.use_src_side_runtest_py:
cmd = [
sys.executable,
@@ -114,7 +117,7 @@ def run_runtest(cmd_args, runtest_args):
'--slave-name', cmd_args.properties['slavename'],
'--build-number', str(cmd_args.properties['buildnumber']),
'--build-properties', json.dumps(cmd_args.properties),
- ] + runtest_args)
+ ] + runtest_args, env=env)
@contextlib.contextmanager