Smoother animations please

Change-Id: Ie27fef1678f758bdaf43f90d5baeabdeef3b9f83
diff --git a/src/com/android/browser/NavScreen.java b/src/com/android/browser/NavScreen.java
index edbaa3b..c61c39f 100644
--- a/src/com/android/browser/NavScreen.java
+++ b/src/com/android/browser/NavScreen.java
@@ -100,6 +100,10 @@
         mPopup = popup;
     }
 
+    protected float getToolbarHeight() {
+        return mActivity.getResources().getDimension(R.dimen.toolbar_height);
+    }
+
     protected void dismissMenu() {
         if (mPopup != null) {
             mPopup.dismiss();