src: rename namespace as chronochat

Change-Id: Idf390b1b2047c912735014d078ce099cf95026e6
diff --git a/src/chatroom-info.cpp b/src/chatroom-info.cpp
index 9dc3439..a56856c 100644
--- a/src/chatroom-info.cpp
+++ b/src/chatroom-info.cpp
@@ -10,7 +10,7 @@
  */
 #include "chatroom-info.hpp"
 
-namespace chronos {
+namespace chronochat {
 
 ChatroomInfo::ChatroomInfo()
 {
@@ -233,4 +233,4 @@
   m_manager = manager;
 }
 
-} // namespace chronos
+} // namespace chronochat