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

build/android/pylib/device/commands/commands.gyp

Index: build/android/pylib/device/commands/commands.gyp
diff --git a/build/android/pylib/device/commands/commands.gyp b/build/android/pylib/device/commands/commands.gyp
new file mode 100644
index 0000000000000000000000000000000000000000..b5b5bc86043732c3807d5820f3048f4d00c4b6bf
--- /dev/null
+++ b/build/android/pylib/device/commands/commands.gyp
@@ -0,0 +1,20 @@
+# 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.
+
+{
+  'targets': [
+    {
+      # GN version: //build/android/pylib/devices/commands:chromium_commands
+      'target_name': 'chromium_commands',
+      'type': 'none',
+      'variables': {
+        'add_to_dependents_classpaths': 0,
+        'java_in_dir': ['java'],
+      },
+      'includes': [
+        '../../../../../build/java.gypi',
+      ],
+    }
+  ],
+}