Query Tiles : Added a flag to disable NTP only

This CL adds a feature flag to selectively disable NTP while still
being able to show the omnibox UI.

[email protected]

Bug: 1141672
Change-Id: I0569cc46fa9d0a5eb0311e4daa8c277d08ce6855
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2493663
Commit-Queue: Shakti Sahu <[email protected]>
Reviewed-by: Min Qin <[email protected]>
Reviewed-by: Xing Liu <[email protected]>
Cr-Commit-Position: refs/heads/master@{#820130}
diff --git a/chrome/browser/flag_descriptions.h b/chrome/browser/flag_descriptions.h
index 1a79cac..61de0e73 100644
--- a/chrome/browser/flag_descriptions.h
+++ b/chrome/browser/flag_descriptions.h
@@ -1733,6 +1733,8 @@
 
 extern const char kQueryTilesName[];
 extern const char kQueryTilesDescription[];
+extern const char kQueryTilesNTPName[];
+extern const char kQueryTilesNTPDescription[];
 extern const char kQueryTilesOmniboxName[];
 extern const char kQueryTilesOmniboxDescription[];
 extern const char kQueryTilesSingleTierName[];