Improve docs around ActionBar as noted in bug 3111444.

Rename method that was missed in previous ActionBar
refactoring. Deprecated previous version for compatibility for apps in
development.

Change-Id: I2c466aed8ed620aec5056026257e131fadf8843e
diff --git a/core/java/com/android/internal/app/ActionBarImpl.java b/core/java/com/android/internal/app/ActionBarImpl.java
index cd1cae6..86523ac 100644
--- a/core/java/com/android/internal/app/ActionBarImpl.java
+++ b/core/java/com/android/internal/app/ActionBarImpl.java
@@ -212,6 +212,10 @@
     }
 
     public View getCustomNavigationView() {
+        return getCustomView();
+    }
+
+    public View getCustomView() {
         return mActionView.getCustomNavigationView();
     }