Add feature for condensed NTP tiles.

chrome/browser/android/chrome_feature_list.cc

Index: chrome/browser/android/chrome_feature_list.cc
diff --git a/chrome/browser/android/chrome_feature_list.cc b/chrome/browser/android/chrome_feature_list.cc
index b8aa5376d470629a0162d66a2dfe042391cf2260..a47c20a452fe10a0c37ef45d6025ab55d53c97b9 100644
--- a/chrome/browser/android/chrome_feature_list.cc
+++ b/chrome/browser/android/chrome_feature_list.cc
@@ -55,6 +55,8 @@ const base::Feature* kFeaturesExposedToJava[] = {
     &kImprovedA2HS,
     &kNoCreditCardAbort,
     &kNTPCondensedLayoutFeature,
+    &kNTPCondensedTileLayoutForLargeScreensFeature,
+    &kNTPCondensedTileLayoutForSmallScreensFeature,
     &kNTPFakeOmniboxTextFeature,
     &kNTPOfflinePagesFeature,
     &NTPShowGoogleGInOmniboxFeature,
@@ -138,6 +140,12 @@ const base::Feature kNTPFakeOmniboxTextFeature{
 const base::Feature kNTPCondensedLayoutFeature{
     "NTPCondensedLayout", base::FEATURE_DISABLED_BY_DEFAULT};
 
+const base::Feature kNTPCondensedTileLayoutForLargeScreensFeature{
+    "NTPCondensedTileLayoutForLargeScreens", base::FEATURE_DISABLED_BY_DEFAULT};
+
+const base::Feature kNTPCondensedTileLayoutForSmallScreensFeature{
+    "NTPCondensedTileLayoutForSmallScreens", base::FEATURE_DISABLED_BY_DEFAULT};
+
 const base::Feature kNTPOfflinePagesFeature{"NTPOfflinePages",
                                             base::FEATURE_ENABLED_BY_DEFAULT};