Disable SearchSuggestions in incognito mode

 Bug: 3336558

Change-Id: Ie88eddee0f4931a206ba45cec708cdbb69cce008
diff --git a/src/com/android/browser/TitleBarXLarge.java b/src/com/android/browser/TitleBarXLarge.java
index b5085b8..4822cc0 100644
--- a/src/com/android/browser/TitleBarXLarge.java
+++ b/src/com/android/browser/TitleBarXLarge.java
@@ -446,4 +446,8 @@
                 ? View.VISIBLE : View.GONE);
     }
 
+    @Override
+    void setIncognitoMode(boolean incognito) {
+        mUrlInput.setIncognitoMode(incognito);
+    }
 }