make sure titlebar can be attached

     Bug: 5110201
     remove title bar from parent if it already has a parent

Change-Id: I9616605004da70b8162ae5bc19a40c1c0418dc55
diff --git a/src/com/android/browser/XLargeUi.java b/src/com/android/browser/XLargeUi.java
index 301e09f..5c11b58 100644
--- a/src/com/android/browser/XLargeUi.java
+++ b/src/com/android/browser/XLargeUi.java
@@ -25,6 +25,7 @@
 import android.view.Gravity;
 import android.view.KeyEvent;
 import android.view.View;
+import android.view.ViewGroup;
 import android.webkit.WebChromeClient.CustomViewCallback;
 import android.webkit.WebView;
 
@@ -94,6 +95,10 @@
             }
             WebView web = getWebView();
             if (web != null) {
+                if (mTitleBar.getParent() != null) {
+                    ViewGroup p = (ViewGroup) mTitleBar.getParent();
+                    p.removeView(mTitleBar);
+                }
                 web.setEmbeddedTitleBar(mTitleBar);
                 // show url bar on scrolling
                 web.setOnTouchListener(this);