Fill the un-encrypted metadata field in password specifics.

components/sync/core/write_node.cc

Index: components/sync/core/write_node.cc
diff --git a/components/sync/core/write_node.cc b/components/sync/core/write_node.cc
index 0977234702cbce013978ddd190d8df1375a17d00..a8b77ea76ae1d31cb7bb4adad110f3272298b138 100644
--- a/components/sync/core/write_node.cc
+++ b/components/sync/core/write_node.cc
@@ -11,6 +11,7 @@
 #include "base/values.h"
 #include "components/sync/base/cryptographer.h"
 #include "components/sync/core/base_transaction.h"
+#include "components/sync/core/password_metadata_filling.h"
 #include "components/sync/core/write_transaction.h"
 #include "components/sync/core_impl/syncapi_internal.h"
 #include "components/sync/protocol/bookmark_specifics.pb.h"
@@ -136,6 +137,13 @@ void WriteNode::SetPasswordSpecifics(
   }
   sync_pb::PasswordSpecifics* password_specifics =
       entity_specifics.mutable_password();
+
+  const std::string metadata_url(data.signon_realm());
+  if (!IsExplicitPassphrase(GetTransaction()->GetPassphraseType()) &&
+      base::FeatureList::IsEnabled(kPasswordsMetadataFilling) &&
+      password_specifics->unencrypted_metadata().url() != metadata_url) {
+    password_specifics->mutable_unencrypted_metadata()->set_url(metadata_url);
+  }

[Nicolas Zea, 2016/09/23 23:10:37]

nit: newline after

[melandory, 2016/10/04 10:13:12]

Done.

   // This will only update password_specifics if the underlying unencrypted blob
   // was different from |data| or was not encrypted with the proper passphrase.
   if (!cryptographer->Encrypt(data, password_specifics->mutable_encrypted())) {