DEV-47529 Chat "foo changed name to bar" on name change, viewer piece

Reviewed with Kelly

indra/newview/llviewerdisplayname.cpp

@@ -42,6 +42,7 @@
 #include "llavatarnamecache.h"
 #include "llhttpclient.h"
 #include "llhttpnode.h"
+#include "llnotificationsutil.h"
 
 namespace LLViewerDisplayName
 {
@@ -124,15 +125,21 @@ class LLDisplayNameUpdate : public LLHTTPNode
 	{
 		LLSD body = input["body"];
 		LLUUID agent_id = body["agent_id"];
-
-		llinfos << "JAMESDEBUG LLDisplayNameUpdate agent_id "
-			<< agent_id << llendl;
+		std::string slid = body["sl_id"];
+		std::string old_display_name = body["old_display_name"];
+		std::string new_display_name = body["new_display_name"];
 
 		// force re-request of this agent's name data
 		LLAvatarNameCache::erase(agent_id);
 
 		// force name tag to update
 		LLVOAvatar::invalidateNameTag(agent_id);
+
+		LLSD args;
+		args["OLD_NAME"] = old_display_name;
+		args["SLID"] = slid;
+		args["NEW_NAME"] = new_display_name;
+		LLNotificationsUtil::add("DisplayNameUpdate", args);
 	}
 };
 

indra/newview/skins/default/xui/en/notifications.xml

@@ -3074,6 +3074,13 @@ Change your display name?
     Sorry, we could not set that display name.  Please try a different name.
   </notification>
 
+  <notification
+   icon="notifytip.tga"
+   name="DisplayNameUpdate"
+   type="notifytip">
+    [OLD_NAME] ([SLID]) is now known as [NEW_NAME].
+  </notification>
+
   <notification
    icon="alertmodal.tga"
    name="OfferTeleport"