Add ability to pass decryption key id to CreateSecureMessage method

chromeos/dbus/easy_unlock_client.cc

Index: chromeos/dbus/easy_unlock_client.cc
diff --git a/chromeos/dbus/easy_unlock_client.cc b/chromeos/dbus/easy_unlock_client.cc
index 60040c018c95e5eeb5d77d21fc7f7ecfd2e69585..ea07f1c0937192eaa666cac0bf28415ed6112558 100644
--- a/chromeos/dbus/easy_unlock_client.cc
+++ b/chromeos/dbus/easy_unlock_client.cc
@@ -78,6 +78,7 @@ class EasyUnlockClientImpl : public EasyUnlockClient {
                                    const std::string& associated_data,
                                    const std::string& public_metadata,
                                    const std::string& verification_key_id,
+                                   const std::string& decryption_key_id,
                                    const std::string& encryption_type,
                                    const std::string& signature_type,
                                    const DataCallback& callback) OVERRIDE {
@@ -92,6 +93,7 @@ class EasyUnlockClientImpl : public EasyUnlockClient {
     AppendStringAsByteArray(associated_data, &writer);
     AppendStringAsByteArray(public_metadata, &writer);
     AppendStringAsByteArray(verification_key_id, &writer);
+    AppendStringAsByteArray(decryption_key_id, &writer);
     writer.AppendString(encryption_type);
     writer.AppendString(signature_type);
     proxy_->CallMethod(&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,