Moving side-page indicators to DragLayer to ensure it draws above hotseat gradient. (Bug 5117499)

Change-Id: Id0ab644f6631f4fd6be042b6be36ba8fe58eaae4
diff --git a/src/com/android/launcher2/PagedView.java b/src/com/android/launcher2/PagedView.java
index 83b688d..4bcb4c7 100644
--- a/src/com/android/launcher2/PagedView.java
+++ b/src/com/android/launcher2/PagedView.java
@@ -270,6 +270,9 @@
     int getCurrentPage() {
         return mCurrentPage;
     }
+    int getNextPage() {
+        return (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage;
+    }
 
     int getPageCount() {
         return getChildCount();
@@ -1858,9 +1861,8 @@
     }
 
     protected String getCurrentPageDescription() {
-        int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage;
         return String.format(getContext().getString(R.string.default_scroll_format),
-                page + 1, getChildCount());
+                 getNextPage() + 1, getChildCount());
     }
 
     @Override