Refactoring layout of launcher

- Only one layout of launcher for landspace/portrait now
- Programmatically vertically centering the shrunken workspace screens rather than using a custom value

Change-Id: Ib689b4031f122b9a1b2bc1ca711b91320619bebd
diff --git a/src/com/android/launcher2/Launcher.java b/src/com/android/launcher2/Launcher.java
index 55680f4..7920472 100644
--- a/src/com/android/launcher2/Launcher.java
+++ b/src/com/android/launcher2/Launcher.java
@@ -2427,6 +2427,10 @@
         return mWorkspace;
     }
 
+    TabHost getCustomizationDrawer() {
+        return mHomeCustomizationDrawer;
+    }
+
     @Override
     protected Dialog onCreateDialog(int id) {
         switch (id) {