Query Tiles : Added flag to experiment with single tier query tiles

Bug: 1081559
Change-Id: Id0e0bbb4d2d0ea1dc2b44bd9cfb4dc1ebd245af1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2200076
Commit-Queue: Shakti Sahu <[email protected]>
Reviewed-by: David Trainor <[email protected]>
Reviewed-by: Min Qin <[email protected]>
Reviewed-by: Xing Liu <[email protected]>
Cr-Commit-Position: refs/heads/master@{#768891}
diff --git a/chrome/browser/flag_descriptions.h b/chrome/browser/flag_descriptions.h
index 00b01ea..e5123f5 100644
--- a/chrome/browser/flag_descriptions.h
+++ b/chrome/browser/flag_descriptions.h
@@ -1549,6 +1549,8 @@
 extern const char kQueryTilesDescription[];
 extern const char kQueryTilesOmniboxName[];
 extern const char kQueryTilesOmniboxDescription[];
+extern const char kQueryTilesSingleTierName[];
+extern const char kQueryTilesSingleTierDescription[];
 extern const char kQueryTilesEnableQueryEditingName[];
 extern const char kQueryTilesEnableQueryEditingDescription[];
 extern const char kQueryTilesCountryCode[];
@@ -1558,7 +1560,7 @@
 extern const char kQueryTilesCountryCodeBrazil[];
 extern const char kQueryTilesCountryCodeNigeria[];
 extern const char kQueryTilesCountryCodeIndonesia[];
-extern const char kQueryTilesInstantFetch[];
+extern const char kQueryTilesInstantFetchName[];
 extern const char kQueryTilesInstantFetchDescription[];
 
 extern const char kReaderModeHeuristicsName[];