[Android] Switch instrumentation tests to the new shard/runner paradigm.

build/android/pylib/instrumentation/test_sharder.py

-# Copyright (c) 2013 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.
-
-"""Sharder for the instrumentation tests."""
-
-from pylib.base import base_test_sharder
-from pylib.base import sharded_tests_queue
-
-import test_runner
-
-
-class TestSharder(base_test_sharder.BaseTestSharder):
-  """Responsible for sharding the tests on the connected devices."""
-
-  def __init__(self, attached_devices, options, tests, apks):
-    super(TestSharder, self).__init__(attached_devices,
-                                      options.build_type)
-    self.options = options
-    self.tests = tests
-    self.apks = apks
-
-  def SetupSharding(self, tests):
-    """Called before starting the shards."""
-    base_test_sharder.SetTestsContainer(sharded_tests_queue.ShardedTestsQueue(
-        len(self.attached_devices), tests))
-
-  def CreateShardedTestRunner(self, device, index):
-    """Creates a sharded test runner.
-
-    Args:
-      device: Device serial where this shard will run.
-      index: Index of this device in the pool.
-
-    Returns:
-      A TestRunner object.
-    """
-    return test_runner.TestRunner(self.options, device, None, False, index,
-                                  self.apks, [])