Sync user's custom spellcheck dictionary

sync/protocol/dictionary_specifics.proto

Index: sync/protocol/dictionary_specifics.proto
diff --git a/sync/protocol/dictionary_specifics.proto b/sync/protocol/dictionary_specifics.proto
new file mode 100644
index 0000000000000000000000000000000000000000..ba50120a22f15541bcfb72b6d1e69dde019d3fe5
--- /dev/null
+++ b/sync/protocol/dictionary_specifics.proto
@@ -0,0 +1,18 @@
+// Copyright (c) 2012 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.
+//
+// Sync protocol datatype extension for the dictionary.
+
+syntax = "proto2";
+
+option optimize_for = LITE_RUNTIME;
+option retain_unknown_fields = true;
+
+package sync_pb;
+
+// Properties of Dictionary objects.
+message DictionarySpecifics {
+  optional string word = 1;

[Nicolas Zea, 2013/01/02 23:12:15]

Add description for field. Maybe something like "A spelling which when seen is
treated as a valid word."

[please use gerrit instead, 2013/01/04 23:30:50]

Added this description: "A spelling which when typed is treated as a correctly
spelled word."

+}
+