Change toast delay from 3 seconds to 5 seconds.

b/17420755

Change-Id: I827980fd41de59fc5808060401abfb4e40261a99
diff --git a/res/values/constants.xml b/res/values/constants.xml
index e67917d..6ca1297 100644
--- a/res/values/constants.xml
+++ b/res/values/constants.xml
@@ -49,7 +49,7 @@
     <!-- The smallest amount of time the toast bar must remain visible -->
     <integer name="toast_bar_min_duration_ms">500</integer>
     <!-- The largest amount of time the toast bar can remain visible -->
-    <integer name="toast_bar_max_duration_ms">3000</integer>
+    <integer name="toast_bar_max_duration_ms">5000</integer>
     <integer name="conversation_desired_font_size_px">14</integer>
     <!-- matches 'font-size' style in template_conversation_upper.html -->
     <integer name="conversation_unstyled_font_size_px">13</integer>