src: rename namespace as chronochat

Change-Id: Idf390b1b2047c912735014d078ce099cf95026e6
diff --git a/src/chat-dialog-backend.cpp b/src/chat-dialog-backend.cpp
index 3e77b53..2644006 100644
--- a/src/chat-dialog-backend.cpp
+++ b/src/chat-dialog-backend.cpp
@@ -18,7 +18,7 @@
 
 INIT_LOGGER("ChatDialogBackend");
 
-namespace chronos {
+namespace chronochat {
 
 static const time::milliseconds FRESHNESS_PERIOD(60000);
 static const time::seconds HELLO_INTERVAL(60);
@@ -409,7 +409,7 @@
   m_face->getIoService().stop();
 }
 
-} // namespace chronos
+} // namespace chronochat
 
 #if WAF
 #include "chat-dialog-backend.moc"