[Sync] Rename csync namespace to syncer

sync/notifier/chrome_system_resources.h

Index: sync/notifier/chrome_system_resources.h
diff --git a/sync/notifier/chrome_system_resources.h b/sync/notifier/chrome_system_resources.h
index 765d8909b06049410b930988e492cdf212454c16..8b8b13f9ffcd29543d63065e395603b94868ccc2 100644
--- a/sync/notifier/chrome_system_resources.h
+++ b/sync/notifier/chrome_system_resources.h
@@ -27,7 +27,7 @@ namespace notifier {
 class PushClient;
 }  // namespace notifier
 
-namespace csync {
+namespace syncer {
 
 class ChromeLogger : public invalidation::Logger {
  public:
@@ -146,6 +146,6 @@ class ChromeSystemResources : public invalidation::SystemResources {
   PushClientChannel push_client_channel_;
 };
 
-}  // namespace csync
+}  // namespace syncer
 
 #endif  // SYNC_NOTIFIER_CHROME_SYSTEM_RESOURCES_H_