Python 3 compatibility

test/mac/gyptest-xcode-env-order.py

 #!/usr/bin/env python
 
 # Copyright (c) 2012 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """
 Verifies that dependent Xcode settings are processed correctly.
 """
 
+from __future__ import print_function
+
 import TestGyp
 import TestMac
 
 import subprocess
 import sys
 
 if sys.platform == 'darwin':
-  print "This test is currently disabled: https://crbug.com/483696."
+  print("This test is currently disabled: https://crbug.com/483696.")
   sys.exit(0)
 
   test = TestGyp.TestGyp(formats=['ninja', 'make', 'xcode'])
 
   CHDIR = 'xcode-env-order'
   INFO_PLIST_PATH = 'Test.app/Contents/Info.plist'
 
   test.run_gyp('test.gyp', chdir=CHDIR)
   test.build('test.gyp', test.ALL, chdir=CHDIR)
 
@@ skipping 55 matching lines @@
     # The bug has been fixed by Xcode version 5.0.0.
     test.must_contain(info_plist, '''\
 \t<key>BareProcessedKey3</key>
 \t<string>com.apple.product-type.application:D:/Source/Project/Test</string>''')
 
   test.must_contain(info_plist, '''\
 \t<key>MixedProcessedKey</key>
 \t<string>/Source/Project:Test:mh_execute</string>''')
 
   test.pass_test()