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

build/android/write_ordered_libraries.gypi

+# Copyright 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.
+
+# This file is meant to be included into an action to provide a rule that
+# generates a json file with the list of dependent libraries needed for a given
+# shared library or executable.
+#
+# To use this, create a gyp target with the following form:
+#  {
+#    'actions': [
+#      'variables': {
+#        'input_libraries': 'shared library or executable to process',
+#        'ordered_libraries_file': 'file to generate'
+#      },
+#      'includes': [ '../../build/android/write_ordered_libraries.gypi' ],
+#    ],
+#  },
+#
+
+{
+  'action_name': 'ordered_libraries_<(_target_name)<(subtarget)',
+  'message': 'Writing dependency ordered libraries for <(_target_name)',
+  'variables': {
+    'input_libraries%': [],
+    'subtarget%': '',
+  },
+  'inputs': [
+    '<(DEPTH)/build/android/gyp/util/build_utils.py',
+    '<(DEPTH)/build/android/gyp/write_ordered_libraries.py',
+    '<@(input_libraries)',
+  ],
+  'outputs': [
+    '<(ordered_libraries_file)',
+  ],
+  'action': [
+    'python', '<(DEPTH)/build/android/gyp/write_ordered_libraries.py',
+    '--input-libraries=<(input_libraries)',
+    '--libraries-dir=<(SHARED_LIB_DIR),<(PRODUCT_DIR)',
+    '--readelf=<(android_readelf)',
+    '--output=<(ordered_libraries_file)',
+  ],
+}