Initial distributor implementation

common/api/dm/service/v1/graph_data_clone.go

Index: common/api/dm/service/v1/graph_data_clone.go
diff --git a/common/api/dm/service/v1/graph_data_clone.go b/common/api/dm/service/v1/graph_data_clone.go
new file mode 100644
index 0000000000000000000000000000000000000000..2b5b2220c3c3d0cc14b645ff056c5cee4c3213d6
--- /dev/null
+++ b/common/api/dm/service/v1/graph_data_clone.go
@@ -0,0 +1,16 @@
+// 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.
+
+package dm
+
+// Clone returns a deep copy of this Quest_Desc.

[dnj (Google), 2016/06/16 16:57:22]

nit: mention that this only works on Normalized descriptors? b/c if Meta or
Retry are nil, this will panic. Or is that implicit?

[iannucci, 2016/06/18 01:35:41]

Switched to proto.Clone anyway :)

+func (d *Quest_Desc) Clone() *Quest_Desc {
+	ret := *d
+	meta := *ret.Meta
+	retry := *meta.Retry
+
+	meta.Retry = &retry
+	ret.Meta = &meta
+	return &ret
+}