Using different ref files for WebRTC audio test on different platforms.

chrome/test/functional/webrtc_audio_quality.py

 #!/usr/bin/env python
 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import os
+import sys
 import tempfile
 import time
 
 import media.audio_tools as audio_tools
 
 # Note: pyauto_functional must come before pyauto.
 import pyauto_functional
 import pyauto
 import pyauto_utils
 import webrtc_test_base
 
 _MEDIA_PATH = os.path.abspath(os.path.join(pyauto.PyUITest.DataDir(),
                                            'pyauto_private', 'webrtc'))
-_REFERENCE_FILE = os.path.join(_MEDIA_PATH, 'human-voice.wav')
+if 'win32' in sys.platform:
+  _REFERENCE_FILE = os.path.join(_MEDIA_PATH, 'human-voice-win.wav')
+else:
+  _REFERENCE_FILE = os.path.join(_MEDIA_PATH, 'human-voice-linux.wav')
 _JAVASCRIPT_PATH = os.path.abspath(os.path.join(pyauto.PyUITest.DataDir(),
                                                 'webrtc'))
 
 
 class WebrtcAudioQualityTest(webrtc_test_base.WebrtcTestBase):
   """Test we can set up a WebRTC call and play audio through it.
 
   This test will only work on machines that have been configured to record their
   own input*.
 
@@ skipping 140 matching lines @@
 
   def _CreateTempFile(self):
     """Returns an absolute path to an empty temp file."""
     file_handle, path = tempfile.mkstemp(suffix='_webrtc.wav')
     os.close(file_handle)
     return path
 
 
 if __name__ == '__main__':
   pyauto_functional.Main()