Fade in animation for bookmarks

 Bug: 3368824

Change-Id: Iefa77f32e74f50024d79879bf1a0362d086b2b17
diff --git a/res/values/integers.xml b/res/values/integers.xml
index 3356f77..a899a14 100644
--- a/res/values/integers.xml
+++ b/res/values/integers.xml
@@ -23,4 +23,6 @@
     <integer name="max_width_crumb">200</integer>
     <!-- The maximum number of most visited URLs in the history tab -->
     <integer name="most_visits_limit">10</integer>
+    <!-- Animation durations -->
+    <integer name="comboViewFadeInDuration">400</integer>
 </resources>