GRPC Stream implementation of HeliumStream

blimp/common/proto/helium_service.proto

Index: blimp/common/proto/helium_service.proto
diff --git a/blimp/common/proto/helium_service.proto b/blimp/common/proto/helium_service.proto
new file mode 100644
index 0000000000000000000000000000000000000000..f72dc6499eaa7b3ca54ef1da7322665e4f907942
--- /dev/null
+++ b/blimp/common/proto/helium_service.proto
@@ -0,0 +1,23 @@
+// Copyright 2016 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.
+
+syntax = "proto3";
+
+option optimize_for = LITE_RUNTIME;
+
+package blimp;
+
+// This message wraps around a serialized set of bytes from a generic message
+// used above the transport layer. This is intentionally opaque so that the
+// transport layer does not know the details of the exact type(s) of messages
+// inside this serialized bytes.
+message HeliumWrapper {
+  bytes serialized_helium_message = 1;
+}
+
+service HeliumService {
+  // A bi-directional streaming API that sends and receives a |HeliumWrapper|
+  // protobuf message.
+  rpc Stream(stream HeliumWrapper) returns (stream HeliumWrapper) {}
+}