Tweak Z-depth for Dialer ActionBar

Bug: 16550151
Change-Id: I27cff5de9aa97f4709b609574c3986c76d9f7050
diff --git a/src/com/android/dialer/DialtactsActivity.java b/src/com/android/dialer/DialtactsActivity.java
index 7d4e2d0..ba9004e 100644
--- a/src/com/android/dialer/DialtactsActivity.java
+++ b/src/com/android/dialer/DialtactsActivity.java
@@ -354,6 +354,7 @@
         actionBar.setCustomView(R.layout.search_edittext);
         actionBar.setDisplayShowCustomEnabled(true);
         actionBar.setBackgroundDrawable(null);
+        actionBar.setElevation(resources.getDimensionPixelSize(R.dimen.action_bar_elevation));
 
         mActionBarController = new ActionBarController(this,
                 (SearchEditTextLayout) actionBar.getCustomView());