toolchain-utils: fix missing-print-function lint warnings.

BUG=chromium:570458
TEST='crosperf/run_tests.sh' passes.

Change-Id: I2e0cf0d903b0ca7662132528ee6860ea8eaee83b
Reviewed-on: https://chrome-internal-review.googlesource.com/243412
Commit-Ready: Rahul Chaudhry <rahulchaudhry@google.com>
Tested-by: Rahul Chaudhry <rahulchaudhry@google.com>
Reviewed-by: Caroline Tice <cmtice@google.com>

4 files changed, 10 insertions, 0 deletions

diff --git a/crosperf/crosperf.py b/crosperf/crosperf.py
index 2466ac6c..cc2c9010 100755
--- a/crosperf/crosperf.py
+++ b/crosperf/crosperf.py
@@ -3,6 +3,8 @@
 # Copyright 2011 Google Inc. All Rights Reserved.
 """The driver script for running performance benchmarks on ChromeOS."""
 
+from __future__ import print_function
+
 import atexit
 import optparse
 import os
diff --git a/crosperf/experiment_runner_unittest.py b/crosperf/experiment_runner_unittest.py
index fe5733e4..320c5014 100755
--- a/crosperf/experiment_runner_unittest.py
+++ b/crosperf/experiment_runner_unittest.py
@@ -1,6 +1,9 @@
 #!/usr/bin/python2
 #
 # Copyright 2014 Google Inc. All Rights Reserved
+
+from __future__ import print_function
+
 import StringIO
 import getpass
 import os
diff --git a/crosperf/machine_manager_unittest.py b/crosperf/machine_manager_unittest.py
index f0084a0d..440f9bba 100755
--- a/crosperf/machine_manager_unittest.py
+++ b/crosperf/machine_manager_unittest.py
@@ -2,6 +2,9 @@
 
 # Copyright 2012 Google Inc. All Rights Reserved.
 """Unittest for machine_manager."""
+
+from __future__ import print_function
+
 import os.path
 import time
 import hashlib
diff --git a/crosperf/suite_runner.py b/crosperf/suite_runner.py
index 527aa984..b76f85e9 100644
--- a/crosperf/suite_runner.py
+++ b/crosperf/suite_runner.py
@@ -2,6 +2,8 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from __future__ import print_function
+
 import os
 import time
 import shlex