Add method to determine if Launcher is using vertical bars

Change-Id: I7e9096cf81b49d213025c6f98708186330448fc0
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index d52ef9f..ba334e3 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -3953,6 +3953,11 @@
         return bounceAnim;
     }
 
+    public boolean useVerticalBarLayout() {
+        return LauncherAppState.getInstance().getDynamicGrid().
+                getDeviceProfile().isVerticalBarLayout();
+    }
+
     @Override
     public void bindSearchablesChanged() {
         boolean searchVisible = updateGlobalSearchIcon();