[sync] Add WalletMetadataSpecifics protobuf.

sync/protocol/sync.proto

 // 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 for communication between sync client and server.
 
 // Update proto_value_conversions{.h,.cc,_unittest.cc} if you change
 // any fields in this file.
 
 syntax = "proto2";
@@ skipping 115 matching lines @@
   optional FaviconImageSpecifics favicon_image = 182019;
   optional ManagedUserSettingSpecifics managed_user_setting = 186662;
   optional ManagedUserSpecifics managed_user = 194582;
   optional ManagedUserSharedSettingSpecifics managed_user_shared_setting =
       202026;
   optional ManagedUserWhitelistSpecifics managed_user_whitelist = 306060;
   optional ArticleSpecifics article = 223759;
   optional AppListSpecifics app_list = 229170;
   optional WifiCredentialSpecifics wifi_credential = 218175;
   optional AutofillWalletSpecifics autofill_wallet = 306270;
+  optional WalletMetadataSpecifics wallet_metadata = 108302;

[Nicolas Zea, 2015/05/20 21:41:45]

nit: not strictly required, but it would be good to choose a revision higher
than the others, as it helps to give us an idea of the order in which a datatype
was added, and how old it is.

[please use gerrit instead, 2015/05/20 23:37:39]

Used a Cr-Commit-Position, since chromium revisions are now git hash tags, which
are unusable here. Updated the comment above, too.

 }
 
 message SyncEntity {
   // This item's identifier.  In a commit of a new item, this will be a
   // client-generated ID.  If the commit succeeds, the server will generate
   // a globally unique ID and return it to the committing client in the
   // CommitResponse.EntryResponse.  In the context of a GetUpdatesResponse,
   // |id_string| is always the server generated ID.  The original
   // client-generated ID is preserved in the |originator_client_id| field.
   // Present in both GetUpdatesResponse and CommitMessage.
@@ skipping 844 matching lines @@
 };
 
 // A message indicating that the sync engine has been disabled on a client.
 message SyncDisabledEvent {
   // The GUID that identifies the sync client.
   optional string cache_guid = 1;
 
   // The store birthday that the client was using before disabling sync.
   optional string store_birthday = 2;
 };