Add a snapshot of flutter/engine/src/build to our sdk

build/android/pylib/sdk/aapt.py

Index: build/android/pylib/sdk/aapt.py
diff --git a/build/android/pylib/sdk/aapt.py b/build/android/pylib/sdk/aapt.py
new file mode 100644
index 0000000000000000000000000000000000000000..3d317ff2c59a85e1182a805a718917103fffce0d
--- /dev/null
+++ b/build/android/pylib/sdk/aapt.py
@@ -0,0 +1,42 @@
+# 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 the Android Asset Packaging Tool."""
+
+import os
+
+from pylib import cmd_helper
+from pylib import constants
+from pylib.utils import timeout_retry
+
+_AAPT_PATH = os.path.join(constants.ANDROID_SDK_TOOLS, 'aapt')
+
+def _RunAaptCmd(args):
+  """Runs an aapt command.
+
+  Args:
+    args: A list of arguments for aapt.
+
+  Returns:
+    The output of the command.
+  """
+  cmd = [_AAPT_PATH] + args
+  status, output = cmd_helper.GetCmdStatusAndOutput(cmd)
+  if status != 0:
+    raise Exception('Failed running aapt command: "%s" with output "%s".' %
+                    (' '.join(cmd), output))
+  return output
+
+def Dump(what, apk, assets=None):
+  """Returns the output of the aapt dump command.
+
+  Args:
+    what: What you want to dump.
+    apk: Path to apk you want to dump information for.
+    assets: List of assets in apk you want to dump information for.
+  """
+  assets = assets or []
+  if isinstance(assets, basestring):
+    assets = [assets]
+  return _RunAaptCmd(['dump', what, apk] + assets).splitlines()