Add a flag to disable to New Tab Page toolbar

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 e55170f19f27db7693471cef671953e4a7ff3244..d7c4987ab36000ab8121c41ae3b212065b0f0d28 100644
--- a/chrome/browser/android/chrome_feature_list.cc
+++ b/chrome/browser/android/chrome_feature_list.cc
@@ -28,6 +28,7 @@ namespace {
 const base::Feature* kFeaturesExposedToJava[] = {
     &kNTPOfflinePagesFeature,
     &kNTPSnippetsFeature,
+    &kNTPToolbarFeature,
     &kPhysicalWebFeature,
     &features::kSimplifiedFullscreenUI,
     &offline_pages::kOfflinePagesBackgroundLoadingFeature,
@@ -43,6 +44,10 @@ const base::Feature kNTPSnippetsFeature {
   "NTPSnippets", base::FEATURE_DISABLED_BY_DEFAULT
 };
 
+const base::Feature kNTPToolbarFeature {
+  "NTPToolbar", base::FEATURE_ENABLED_BY_DEFAULT
+};
+
 const base::Feature kPhysicalWebFeature {
   "PhysicalWeb", base::FEATURE_DISABLED_BY_DEFAULT
 };