Enable drag & drop -> Springload for breadcrumb.

Bug: 29519481
Change-Id: I54d98c48c08153c22b2f01c7728187927c4fe1a2
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index cad26e2..5f1b349 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -33,6 +33,8 @@
     <dimen name="grid_padding_vert">4dp</dimen>
     <dimen name="list_item_height">72dp</dimen>
     <dimen name="list_item_padding">16dp</dimen>
+    <dimen name="breadcrumb_item_padding">8dp</dimen>
+    <dimen name="breadcrumb_item_height">36dp</dimen>
     <dimen name="list_divider_inset">72dp</dimen>
     <dimen name="dir_elevation">8dp</dimen>
     <dimen name="drag_shadow_size">120dp</dimen>