Fix bug 5521467 - Monkeys and ActionBar custom tab views

Remove custom tab views from old parents if applicable.

Change-Id: I7892f0f271e91a4fc9e26694557e82b81f3fd31a

Author: adamp

core/java/com/android/internal/widget/ScrollingTabContainerView.java

@@ -29,6 +29,7 @@
 import android.view.Gravity;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.ViewParent;
 import android.view.animation.DecelerateInterpolator;
 import android.widget.AdapterView;
 import android.widget.BaseAdapter;
@@ -392,7 +393,11 @@ public void update() {
             final ActionBar.Tab tab = mTab;
             final View custom = tab.getCustomView();
             if (custom != null) {
-                addView(custom);
+                final ViewParent customParent = custom.getParent();
+                if (customParent != this) {
+                    if (customParent != null) ((ViewGroup) customParent).removeView(custom);
+                    addView(custom);
+                }
                 mCustomView = custom;
                 if (mTextView != null) mTextView.setVisibility(GONE);
                 if (mIconView != null) {