Add a sign-in promo message to the Other Devices menu.

chrome/browser/ui/webui/ntp/foreign_session_handler.cc

Index: chrome/browser/ui/webui/ntp/foreign_session_handler.cc
diff --git a/chrome/browser/ui/webui/ntp/foreign_session_handler.cc b/chrome/browser/ui/webui/ntp/foreign_session_handler.cc
index 4a6bbaed1601a893c36c1a9f65c796fe3fc52ed2..4c5154d5bac9b9a0934ebd6666412072ca20e9d6 100644
--- a/chrome/browser/ui/webui/ntp/foreign_session_handler.cc
+++ b/chrome/browser/ui/webui/ntp/foreign_session_handler.cc
@@ -94,17 +94,11 @@ void ForeignSessionHandler::HandleGetForeignSessions(const ListValue* args) {
   SessionModelAssociator* associator = GetModelAssociator();
   std::vector<const SyncedSession*> sessions;
 
-  if (associator == NULL) {
-    // Called before associator created, exit.
+  // Exit if the associator is not created or there are no foreign sessions.
+  if (!associator ||!associator->GetAllForeignSessions(&sessions))
     return;
-  }
 
   // Note: we don't own the SyncedSessions themselves.
-  if (!associator->GetAllForeignSessions(&sessions)) {
-    LOG(ERROR) << "ForeignSessionHandler failed to get session data from"
-        "SessionModelAssociator.";
-    return;
-  }
   int added_count = 0;
   ListValue session_list;
   for (std::vector<const SyncedSession*>::const_iterator i =