Revamp the Incognito NTP on Desktop

chrome/common/chrome_features.cc

Index: chrome/common/chrome_features.cc
diff --git a/chrome/common/chrome_features.cc b/chrome/common/chrome_features.cc
index 3949411d8017577a9bb1f6dcbf7f27590ad778d0..3da2274e7b1ac83ac484f286b47aafbbeefaf2fa 100644
--- a/chrome/common/chrome_features.cc
+++ b/chrome/common/chrome_features.cc
@@ -192,6 +192,10 @@ extern const base::Feature kAcknowledgeNtpOverrideOnDeactivate{
 const base::Feature kMaterialDesignHistory{"MaterialDesignHistory",
                                            base::FEATURE_ENABLED_BY_DEFAULT};
 
+// The material redesign of the Incognito NTP.
+const base::Feature kMaterialDesignIncognitoNTP{
+    "MaterialDesignIncognitoNTP", base::FEATURE_DISABLED_BY_DEFAULT};
+
 // Enables or disables the Material Design version of chrome://settings.
 // Also affects chrome://help.
 const base::Feature kMaterialDesignSettings{"MaterialDesignSettings",