Clear existing completion when psychic is turned off.

bug: 4076245
Change-Id: Ibbdd5f40927550e508631ce17663e8ee2b01ca82
diff --git a/src/com/android/browser/TitleBarXLarge.java b/src/com/android/browser/TitleBarXLarge.java
index 8a715b1..cbe666c 100644
--- a/src/com/android/browser/TitleBarXLarge.java
+++ b/src/com/android/browser/TitleBarXLarge.java
@@ -396,6 +396,10 @@
         return super.focusSearch(focused, dir);
     }
 
+    void clearCompletions() {
+        mUrlInput.setSuggestedText(null);
+    }
+
     @Override
     public boolean dispatchKeyEventPreIme(KeyEvent evt) {
         if (evt.getKeyCode() == KeyEvent.KEYCODE_BACK) {