Update from https://crrev.com/304418

build/android/pylib/device/device_utils.py

 # Copyright 2014 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.
 
 """Provides a variety of device interactions based on adb.
 
 Eventually, this will be based on adb_wrapper.
 """
 # pylint: disable=W0613
 
@@ skipping 297 matching lines @@
 
     Raises:
       CommandTimeoutError on timeout.
       DeviceUnreachableError on missing device.
     """
     def device_offline():
       return not self.IsOnline()
 
     self.adb.Reboot()
     self._cache = {}
-    timeout_retry.WaitFor(device_offline, wait_period=1, max_tries=5)
+    timeout_retry.WaitFor(device_offline, wait_period=1)
     if block:
       self.WaitUntilFullyBooted()
 
   INSTALL_DEFAULT_TIMEOUT = 4 * _DEFAULT_TIMEOUT
   INSTALL_DEFAULT_RETRIES = _DEFAULT_RETRIES
 
   @decorators.WithTimeoutAndRetriesDefaults(
       INSTALL_DEFAULT_TIMEOUT,
       INSTALL_DEFAULT_RETRIES)
   def Install(self, apk_path, reinstall=False, timeout=None, retries=None):
@@ skipping 837 matching lines @@
     Returns:
       A Parallelizer operating over |devices|.
     """
     if not devices or len(devices) == 0:
       devices = pylib.android_commands.GetAttachedDevices()
     parallelizer_type = (parallelizer.Parallelizer if async
                          else parallelizer.SyncParallelizer)
     return parallelizer_type([
         d if isinstance(d, DeviceUtils) else DeviceUtils(d)
         for d in devices])