Modify android video_quality_loopback_test to run commands from the src dir.

webrtc/examples/androidtests/video_quality_loopback_test.py

Index: webrtc/examples/androidtests/video_quality_loopback_test.py
diff --git a/webrtc/examples/androidtests/video_quality_loopback_test.py b/webrtc/examples/androidtests/video_quality_loopback_test.py
index 725b4c7241994126e8834eb1a48ca660e38c55ae..4536f1cd151edc8f92fec1d5da5ace1a3692abdb 100755
--- a/webrtc/examples/androidtests/video_quality_loopback_test.py
+++ b/webrtc/examples/androidtests/video_quality_loopback_test.py
@@ -32,9 +32,9 @@ SRC_DIR = os.path.normpath(os.path.join(SCRIPT_DIR, os.pardir, os.pardir,
                                         os.pardir))
 
 
-def _RunCommand(argv, **kwargs):
+def _RunCommand(argv, cwd=SRC_DIR, **kwargs):

[kjellander (google.com), 2017/02/14 12:31:05]

The script supports --source_dir flag, which overrides this (I don't remember
the use case for it though, you could ask mandermo@). But either way I think we
should use the value of args.source_dir instead, or just remove the flag
entirely.

[mandermo, 2017/02/14 14:21:15]

Was useful during the development to provide the source_dir. I agree that either
args.source_dir should be used or args.source_dir should be removed.

[kjellander_webrtc, 2017/02/14 14:36:11]

I say we just drop the flag then. It shouldn't be needed anymore I think.

   logging.info('Running %r', argv)
-  subprocess.check_call(argv, **kwargs)
+  subprocess.check_call(argv, cwd=cwd, **kwargs)
 
 
 def _ParseArgs():