Split UI based on screen size

      Different UI implementation for normal and xlarge screens

Change-Id: I8217ffd16e1f87b248a22426b17fa34b3a4f89df
diff --git a/src/com/android/browser/UI.java b/src/com/android/browser/UI.java
index b56ba30..9f03344 100644
--- a/src/com/android/browser/UI.java
+++ b/src/com/android/browser/UI.java
@@ -16,8 +16,6 @@
 
 package com.android.browser;
 
-import com.android.browser.ScrollWebView.ScrollListener;
-
 import android.content.res.Configuration;
 import android.graphics.Bitmap;
 import android.os.Bundle;
@@ -32,7 +30,7 @@
 /**
  * UI interface definitions
  */
-public interface UI extends ScrollListener {
+public interface UI {
 
     public void onPause();