Linux create_sdk GN build for host

tools/dart_for_gn.py

Index: tools/dart_for_gn.py
diff --git a/tools/dart_for_gn.py b/tools/dart_for_gn.py
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+#!/usr/bin/env python
+# Copyright 2016 The Dart project authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# Usage: dart_for_gn.py path_to_dart_binary [arguments]
+#
+# We have gn set up so that actions can only run python scripts.
+# We use this wrapper script when we need an action to run the Dart VM
+# The first command line argument is mandatory and should be the absolute path
+# to the Dart VM binary.
+
+import subprocess
+import sys
+
+def main(argv):
+  if len(argv) < 2:
+    print "Requires path to Dart VM binary as first argument"
+    return -1
+  command = argv[1:]
+  return subprocess.call(command)
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))