Remove all //blimp code.

blimp/test/impaired_network/test_runner.py

Index: blimp/test/impaired_network/test_runner.py
diff --git a/blimp/test/impaired_network/test_runner.py b/blimp/test/impaired_network/test_runner.py
deleted file mode 100755
index 31562414d4ed33232580d11168520cd510dcc773..0000000000000000000000000000000000000000
--- a/blimp/test/impaired_network/test_runner.py
+++ /dev/null
@@ -1,132 +0,0 @@
-#!/usr/bin/env python
-
-# Copyright 2016 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 argparse
-import multiprocessing
-import os
-import pwd
-import subprocess
-
-from twisted.internet import reactor
-
-from packet_queue import monitoring
-from packet_queue import nfqueue
-from packet_queue import simulation
-
-
-ENGINE_PORT = 25467
-MTU = 2048
-
-
-def parse_args():
-  parser = argparse.ArgumentParser()
-
-  parser.add_argument(
-      '--target', type=str, required=True,
-      help='path of the test binary to run')
-  parser.add_argument(
-      '--gtest_filter', type=str, default='EngineBrowserTest.LoadUrl',
-      help='which specific test to run')
-  parser.add_argument(
-      '-w', '--bandwidth', type=int, default=-1,
-      help='bandwidth cap in bytes/second, unlimited by default')
-  parser.add_argument(
-      '-b', '--buffer', type=int, default=-1,
-      help='buffer size in bytes, unlimited by default')
-  parser.add_argument(
-      '-d', '--delay', type=float, default=0.0,
-      help='one-way packet delay in seconds')
-  parser.add_argument(
-      '-l', '--loss', type=float, default=0.0,
-      help='probability of random packet loss')
-
-  return parser.parse_args()
-
-
-def run_packet_queue(params, ready_event):
-  """Runs the packet queue with parameters from command-line args.
-
-  This function runs the Twisted reactor, which blocks until the process is
-  interrupted.
-  """
-  event_log = monitoring.EventLog()
-  pipes = simulation.PipePair(params, event_log)
-
-  nfqueue.configure('tcp', ENGINE_PORT, pipes, 'lo')
-
-  reactor.callWhenRunning(ready_event.set)
-  reactor.addSystemEventTrigger(
-      'before', 'shutdown', report_stats, event_log)
-  reactor.run()
-
-
-def report_stats(event_log):
-  """Prints accumulated network stats to stdout."""
-  dropped = 0
-  delivered = 0
-
-  for event in event_log.get_pending():
-    if event['type'] == 'drop':
-      dropped += event['value']
-    elif event['type'] == 'deliver':
-      delivered += event['value']
-
-  print '%i bytes delivered' % delivered
-  print '%i bytes dropped' % dropped
-
-
-def set_chrome_test_user():
-  """If the SUDO_USER environment variable exists, sets the user to that.
-
-  This is required because Chrome browser tests won't run as root.
-
-  If SUDO_USER isn't present, we might be running as a non-root user with
-  the CAP_NET_ADMIN capability, so the user won't change.
-  """
-  sudo_user = os.getenv('SUDO_USER')
-  if sudo_user:
-    uid = pwd.getpwnam(sudo_user).pw_uid
-    os.setuid(uid)
-
-
-def main():
-  """Runs a Blimp test target with network impairment.
-
-  This works by forking to run the packet queue, and then running the test
-  binary in a subprocess when the packet queue is ready.
-  """
-  args = parse_args()
-
-  simulation_params = {
-      'bandwidth': args.bandwidth,
-      'buffer': args.buffer,
-      'delay': args.delay,
-      'loss': args.loss,
-  }
-
-  ready_event = multiprocessing.Event()
-  packet_queue = multiprocessing.Process(
-      target=run_packet_queue, args=(simulation_params, ready_event))
-
-  if subprocess.call(['ip', 'link', 'set', 'dev', 'lo', 'mtu', str(MTU)]):
-    raise OSError('Failed to set MTU')
-
-  packet_queue.start()
-  ready_event.wait(timeout=3)
-
-  subprocess.call([
-      args.target,
-      '--disable-setuid-sandbox',
-      '--single_process',
-      '--engine-port=%i' % ENGINE_PORT,
-      '--gtest_filter=%s' % args.gtest_filter,
-  ], preexec_fn=set_chrome_test_user)
-
-  packet_queue.terminate()
-
-
-if __name__ == '__main__':
-  main()