[Sync] Rename csync namespace to syncer

sync/js/js_controller.h

 // 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 SYNC_JS_JS_CONTROLLER_H_
 #define SYNC_JS_JS_CONTROLLER_H_
 #pragma once
 
 // See README.js for design comments.
 
 #include <string>
 
-namespace csync {
+namespace syncer {
 
 class JsArgList;
 class JsEventHandler;
 class JsReplyHandler;
 template <typename T> class WeakHandle;
 
 // An interface for objects that JsEventHandlers directly interact
 // with.  JsEventHandlers can add themselves to receive events and
 // also send messages which will eventually reach the backend.
 class JsController {
@@ skipping 14 matching lines @@
   // Processes a JS message.  The reply (if any) will be sent to
   // |reply_handler| if it is initialized.
   virtual void ProcessJsMessage(
       const std::string& name, const JsArgList& args,
       const WeakHandle<JsReplyHandler>& reply_handler) = 0;
 
  protected:
   virtual ~JsController() {}
 };
 
-}  // namespace csync
+}  // namespace syncer
 
 #endif  // SYNC_JS_JS_CONTROLLER_H_