Fix crash with keyboard focus in AllApps due to view refactoring

issue 16478600

Change-Id: I0300e7ffb332b689e3412e764ab7ce59c4fc5748
diff --git a/src/com/android/launcher3/AppsCustomizeTabHost.java b/src/com/android/launcher3/AppsCustomizeTabHost.java
index 334d8b6..283f4ed 100644
--- a/src/com/android/launcher3/AppsCustomizeTabHost.java
+++ b/src/com/android/launcher3/AppsCustomizeTabHost.java
@@ -150,7 +150,7 @@
     }
 
     @Override
-    public View getContent() {
+    public ViewGroup getContent() {
         return mPagedView;
     }