Chameleon swagger support

Change-Id: I63b8dc7b31d5e87aa0e5153da302537d90ff733e
diff --git a/tests/utests/chameleon/protoc_plugins/null_plugin.py b/tests/utests/chameleon/protoc_plugins/null_plugin.py
new file mode 100755
index 0000000..9443304
--- /dev/null
+++ b/tests/utests/chameleon/protoc_plugins/null_plugin.py
@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+#
+# Copyright 2016 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+"""
+Protoc plugin that simply emits the binary content of the CodeGeneratorRequest
+it is called with for each <name>.proto file. The name of the file the content
+is saved is protoc.request.
+"""
+import base64
+import sys
+
+from google.protobuf.compiler import plugin_pb2
+
+if __name__ == '__main__':
+    response = plugin_pb2.CodeGeneratorResponse()
+    f = response.file.add()
+    f.name = 'protoc.request'
+    f.content = base64.encodestring(sys.stdin.read())
+    sys.stdout.write(response.SerializeToString())