Reformat python files checked by pylint (part 1/2).

After recently changing .pylintrc (see [1]) we discovered that
the presubmit check always checks all the python files when just
one python file gets updated.

This CL moves all these files one step closer to what the linter
wants.

Autogenerated with:

# Added all the files under pylint control to ~/Desktop/to-reformat
cat ~/Desktop/to-reformat | xargs sed -i '1i\\'
git cl format --python --full

This is part 1 out of 2. The second part will fix function names and
will not be automated.

[1] - https://webrtc-review.googlesource.com/c/src/+/186664

No-Presubmit: True
Bug: webrtc:12114
Change-Id: Idfec4d759f209a2090440d0af2413a1ddc01b841
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/190980
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32530}

tools_webrtc/flags_compatibility.py

@@ -15,30 +15,32 @@ import sys
 
 
 def main():
-  parser = argparse.ArgumentParser()
-  parser.add_argument('--isolated-script-test-perf-output')
-  args, unrecognized_args = parser.parse_known_args()
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--isolated-script-test-perf-output')
+    args, unrecognized_args = parser.parse_known_args()
 
-  test_command = _ForcePythonInterpreter(unrecognized_args)
-  if args.isolated_script_test_perf_output:
-    test_command += ['--isolated_script_test_perf_output=' +
-                     args.isolated_script_test_perf_output]
-  logging.info('Running %r', test_command)
+    test_command = _ForcePythonInterpreter(unrecognized_args)
+    if args.isolated_script_test_perf_output:
+        test_command += [
+            '--isolated_script_test_perf_output=' +
+            args.isolated_script_test_perf_output
+        ]
+    logging.info('Running %r', test_command)
 
-  return subprocess.call(test_command)
+    return subprocess.call(test_command)
 
 
 def _ForcePythonInterpreter(cmd):
-  """Returns the fixed command line to call the right python executable."""
-  out = cmd[:]
-  if out[0] == 'python':
-    out[0] = sys.executable
-  elif out[0].endswith('.py'):
-    out.insert(0, sys.executable)
-  return out
+    """Returns the fixed command line to call the right python executable."""
+    out = cmd[:]
+    if out[0] == 'python':
+        out[0] = sys.executable
+    elif out[0].endswith('.py'):
+        out.insert(0, sys.executable)
+    return out
 
 
 if __name__ == '__main__':
-  # pylint: disable=W0101
-  logging.basicConfig(level=logging.INFO)
-  sys.exit(main())
+    # pylint: disable=W0101
+    logging.basicConfig(level=logging.INFO)
+    sys.exit(main())