Avoid useless SYNC_CYCLE_CONTINUATION sync cycle

chrome/browser/sync/engine/syncer_error.cc

+// Copyright (c) 2011 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.
+
+#include "chrome/browser/sync/engine/syncer_error.h"
+
+#include "base/logging.h"
+
+namespace browser_sync {
+
+#define ENUM_CASE(x) case x: return #x; break;
+const char* GetSyncerErrorString(SyncerError value) {
+  switch (value) {
+    ENUM_CASE(UNINITIALIZED);
+    ENUM_CASE(DIRECTORY_LOOKUP_FAILED);
+    ENUM_CASE(NETWORK_CONNECTION_UNAVAILABLE);
+    ENUM_CASE(NETWORK_IO_ERROR);
+    ENUM_CASE(SYNC_SERVER_ERROR);
+    ENUM_CASE(SYNC_AUTH_ERROR);
+    ENUM_CASE(SERVER_RETURN_INVALID_CREDENTIAL);
+    ENUM_CASE(SERVER_RETURN_UNKNOWN_ERROR);
+    ENUM_CASE(SERVER_RETURN_THROTTLED);
+    ENUM_CASE(SERVER_RETURN_TRANSIENT_ERROR);
+    ENUM_CASE(SERVER_RETURN_MIGRATION_DONE);
+    ENUM_CASE(SERVER_RETURN_CLEAR_PENDING);
+    ENUM_CASE(SERVER_RETURN_NOT_MY_BIRTHDAY);
+    ENUM_CASE(SERVER_RESPONSE_VALIDATION_FAILED);
+    ENUM_CASE(NO_ERROR);
+  }
+  NOTREACHED();
+}
+#undef ENUM_CASE
+
+} // namespace browser_sync
+