[Android][telemetry] Update pylib imports for modules that moved into devil.

build/android/pylib/ports.py

Index: build/android/pylib/ports.py
diff --git a/build/android/pylib/ports.py b/build/android/pylib/ports.py
deleted file mode 100644
index fa0345b6b96efb01d40fe58ea7f355e514e091a6..0000000000000000000000000000000000000000
--- a/build/android/pylib/ports.py
+++ /dev/null
@@ -1,173 +0,0 @@
-# Copyright (c) 2012 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.
-
-"""Functions that deal with local and device ports."""
-
-import contextlib
-import fcntl
-import httplib
-import logging
-import os
-import socket
-import traceback
-
-from pylib import constants
-
-
-# The following two methods are used to allocate the port source for various
-# types of test servers. Because some net-related tests can be run on shards at
-# same time, it's important to have a mechanism to allocate the port
-# process-safe. In here, we implement the safe port allocation by leveraging
-# flock.
-def ResetTestServerPortAllocation():
-  """Resets the port allocation to start from TEST_SERVER_PORT_FIRST.
-
-  Returns:
-    Returns True if reset successes. Otherwise returns False.
-  """
-  try:
-    with open(constants.TEST_SERVER_PORT_FILE, 'w') as fp:
-      fp.write('%d' % constants.TEST_SERVER_PORT_FIRST)
-    if os.path.exists(constants.TEST_SERVER_PORT_LOCKFILE):
-      os.unlink(constants.TEST_SERVER_PORT_LOCKFILE)
-    return True
-  except Exception as e:
-    logging.error(e)
-  return False
-
-
-def AllocateTestServerPort():
-  """Allocates a port incrementally.
-
-  Returns:
-    Returns a valid port which should be in between TEST_SERVER_PORT_FIRST and
-    TEST_SERVER_PORT_LAST. Returning 0 means no more valid port can be used.
-  """
-  port = 0
-  ports_tried = []
-  try:
-    fp_lock = open(constants.TEST_SERVER_PORT_LOCKFILE, 'w')
-    fcntl.flock(fp_lock, fcntl.LOCK_EX)
-    # Get current valid port and calculate next valid port.
-    if not os.path.exists(constants.TEST_SERVER_PORT_FILE):
-      ResetTestServerPortAllocation()
-    with open(constants.TEST_SERVER_PORT_FILE, 'r+') as fp:
-      port = int(fp.read())
-      ports_tried.append(port)
-      while not IsHostPortAvailable(port):
-        port += 1
-        ports_tried.append(port)
-      if (port > constants.TEST_SERVER_PORT_LAST or
-          port < constants.TEST_SERVER_PORT_FIRST):
-        port = 0
-      else:
-        fp.seek(0, os.SEEK_SET)
-        fp.write('%d' % (port + 1))
-  except Exception as e:
-    logging.error(e)
-  finally:
-    if fp_lock:
-      fcntl.flock(fp_lock, fcntl.LOCK_UN)
-      fp_lock.close()
-  if port:
-    logging.info('Allocate port %d for test server.', port)
-  else:
-    logging.error('Could not allocate port for test server. '
-                  'List of ports tried: %s', str(ports_tried))
-  return port
-
-
-def IsHostPortAvailable(host_port):
-  """Checks whether the specified host port is available.
-
-  Args:
-    host_port: Port on host to check.
-
-  Returns:
-    True if the port on host is available, otherwise returns False.
-  """
-  s = socket.socket()
-  try:
-    s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
-    s.bind(('', host_port))
-    s.close()
-    return True
-  except socket.error:
-    return False
-
-
-def IsDevicePortUsed(device, device_port, state=''):
-  """Checks whether the specified device port is used or not.
-
-  Args:
-    device: A DeviceUtils instance.
-    device_port: Port on device we want to check.
-    state: String of the specified state. Default is empty string, which
-           means any state.
-
-  Returns:
-    True if the port on device is already used, otherwise returns False.
-  """
-  base_urls = ('127.0.0.1:%d' % device_port, 'localhost:%d' % device_port)
-  netstat_results = device.RunShellCommand(
-      ['netstat', '-a'], check_return=True, large_output=True)
-  for single_connect in netstat_results:
-    # Column 3 is the local address which we want to check with.
-    connect_results = single_connect.split()
-    if connect_results[0] != 'tcp':
-      continue
-    if len(connect_results) < 6:
-      raise Exception('Unexpected format while parsing netstat line: ' +
-                      single_connect)
-    is_state_match = connect_results[5] == state if state else True
-    if connect_results[3] in base_urls and is_state_match:
-      return True
-  return False
-
-
-def IsHttpServerConnectable(host, port, tries=3, command='GET', path='/',
-                            expected_read='', timeout=2):
-  """Checks whether the specified http server is ready to serve request or not.
-
-  Args:
-    host: Host name of the HTTP server.
-    port: Port number of the HTTP server.
-    tries: How many times we want to test the connection. The default value is
-           3.
-    command: The http command we use to connect to HTTP server. The default
-             command is 'GET'.
-    path: The path we use when connecting to HTTP server. The default path is
-          '/'.
-    expected_read: The content we expect to read from the response. The default
-                   value is ''.
-    timeout: Timeout (in seconds) for each http connection. The default is 2s.
-
-  Returns:
-    Tuple of (connect status, client error). connect status is a boolean value
-    to indicate whether the server is connectable. client_error is the error
-    message the server returns when connect status is false.
-  """
-  assert tries >= 1
-  for i in xrange(0, tries):
-    client_error = None
-    try:
-      with contextlib.closing(httplib.HTTPConnection(
-          host, port, timeout=timeout)) as http:
-        # Output some debug information when we have tried more than 2 times.
-        http.set_debuglevel(i >= 2)
-        http.request(command, path)
-        r = http.getresponse()
-        content = r.read()
-        if r.status == 200 and r.reason == 'OK' and content == expected_read:
-          return (True, '')
-        client_error = ('Bad response: %s %s version %s\n  ' %
-                        (r.status, r.reason, r.version) +
-                        '\n  '.join([': '.join(h) for h in r.getheaders()]))
-    except (httplib.HTTPException, socket.error) as e:
-      # Probably too quick connecting: try again.
-      exception_error_msgs = traceback.format_exception_only(type(e), e)
-      if exception_error_msgs:
-        client_error = ''.join(exception_error_msgs)
-  # Only returns last client_error.
-  return (False, client_error or 'Timeout')