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
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index 0000000000000000000000000000000000000000..0eb4f802185631ead5050576fda2971b68ca086c
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+++ b/blimp/common/proto/helium_service.proto
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+// 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

[Garrett Casto, 2016/11/11 00:15:53]

Nit: You are line wrapping really early here.

+// 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) {}
+}