Manual partial update from from https://crrev.com/337502

build/android/pylib/sdk/split_select.py

Index: build/android/pylib/sdk/split_select.py
diff --git a/build/android/pylib/sdk/split_select.py b/build/android/pylib/sdk/split_select.py
new file mode 100644
index 0000000000000000000000000000000000000000..8752129c04c4a41f05c7da4b758127c99d0c708f
--- /dev/null
+++ b/build/android/pylib/sdk/split_select.py
@@ -0,0 +1,66 @@
+# Copyright 2015 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.
+
+"""This module wraps Android's split-select tool."""
+# pylint: disable=unused-argument
+
+import os
+
+from pylib import cmd_helper
+from pylib import constants
+from pylib.utils import timeout_retry
+
+_SPLIT_SELECT_PATH = os.path.join(constants.ANDROID_SDK_TOOLS, 'split-select')
+_DEFAULT_TIMEOUT = 30
+_DEFAULT_RETRIES = 2
+
+def _RunSplitSelectCmd(args, timeout=None, retries=None):
+  """Runs a split-select command.
+
+  Args:
+    args: A list of arguments for split-select.
+    timeout: Timeout in seconds.
+    retries: Number of retries.
+
+  Returns:
+    The output of the command.
+  """
+  cmd = [_SPLIT_SELECT_PATH] + args
+  status, output = cmd_helper.GetCmdStatusAndOutputWithTimeout(
+      cmd, timeout_retry.CurrentTimeoutThread().GetRemainingTime())
+  if status != 0:
+    raise Exception('Failed running command %s' % str(cmd))
+  return output
+
+def _SplitConfig(device):
+  """Returns a config specifying which APK splits are required by the device.
+
+  Args:
+    device: A DeviceUtils object.
+  """
+  return ('%s-r%s-%s:%s' %
+          (device.language,
+           device.country,
+           device.screen_density,
+           device.product_cpu_abi))
+
+def SelectSplits(device, base_apk, split_apks,
+                 timeout=_DEFAULT_TIMEOUT, retries=_DEFAULT_RETRIES):
+  """Determines which APK splits the device requires.
+
+  Args:
+    device: A DeviceUtils object.
+    base_apk: The path of the base APK.
+    split_apks: A list of paths of APK splits.
+    timeout: Timeout in seconds.
+    retries: Number of retries.
+
+  Returns:
+    The list of APK splits that the device requires.
+  """
+  config = _SplitConfig(device)
+  args = ['--target', config, '--base', base_apk]
+  for split in split_apks:
+    args.extend(['--split', split])
+  return _RunSplitSelectCmd(args, timeout=timeout, retries=retries).splitlines()