Log the sync communication that happens between client and server.

chrome/browser/sync/engine/traffic_logger.h

Index: chrome/browser/sync/engine/traffic_logger.h
diff --git a/chrome/browser/sync/engine/traffic_logger.h b/chrome/browser/sync/engine/traffic_logger.h
new file mode 100644
index 0000000000000000000000000000000000000000..cd199e49c1bb69a82770e7abdaf13f407d459e07
--- /dev/null
+++ b/chrome/browser/sync/engine/traffic_logger.h
@@ -0,0 +1,22 @@
+// 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.
+
+#ifndef CHROME_BROWSER_SYNC_ENGINE_TRAFFIC_LOGGER_H_
+#define CHROME_BROWSER_SYNC_ENGINE_TRAFFIC_LOGGER_H_
+#pragma once
+

[akalin, 2012/03/14 00:17:30]

Add a comment about this file, specifically that it's here so that one can do
--enable-logging --vmodule='traffic_logger=1' to see sync HTTP traffic

[lipalani1, 2012/03/15 00:02:13]

Done.

+namespace sync_pb {
+class ClientToServerResponse;
+class ClientToServerMessage;
+}  // namespace sync_pb
+
+namespace browser_sync {
+
+void LogClientToServerMessage(const sync_pb::ClientToServerMessage& msg);
+void LogClientToServerResponse(
+    const sync_pb::ClientToServerResponse& response);
+
+}  // namespace browser_sync
+
+#endif  // CHROME_BROWSER_SYNC_ENGINE_TRAFFIC_LOGGER_H_