Fix bug 4499292 - ActionBar tabs don't show the first time

Fix an order of operations issue with actionbar tab initialization.

Change-Id: Ie1b1c76614eafc68e0069985b93683b44699b958
diff --git a/core/java/com/android/internal/widget/ActionBarView.java b/core/java/com/android/internal/widget/ActionBarView.java
index 31897ef..b7aac14 100644
--- a/core/java/com/android/internal/widget/ActionBarView.java
+++ b/core/java/com/android/internal/widget/ActionBarView.java
@@ -285,6 +285,9 @@
     public void setEmbeddedTabView(ScrollingTabContainerView tabs) {
         mTabScrollView = tabs;
         mIncludeTabs = tabs != null;
+        if (mIncludeTabs) {
+            addView(mTabScrollView);
+        }
     }
 
     public void setCallback(OnNavigationListener callback) {