Drag and Drop UI Polish.

Bug: 31182423
Change-Id: I2bf644c788ba2431ef3ff8ca9155c661f21c64c8
diff --git a/res/values/dimens.xml b/res/values/dimens.xml
index 2c4ff99..a9be865 100644
--- a/res/values/dimens.xml
+++ b/res/values/dimens.xml
@@ -43,8 +43,10 @@
 
     <dimen name="drawer_edge_width">12dp</dimen>
 
-    <dimen name="drag_shadow_width">160dp</dimen>
-    <dimen name="drag_shadow_height">48dp</dimen>
+    <dimen name="drag_shadow_width">176dp</dimen>
+    <dimen name="drag_shadow_height">64dp</dimen>
+    <dimen name="drag_shadow_radius">4dp</dimen>
+    <dimen name="drag_shadow_padding">8dp</dimen>
 
     <dimen name="doc_header_sort_icon_size">16dp</dimen>
     <dimen name="doc_header_height">60dp</dimen>
@@ -52,6 +54,6 @@
     <dimen name="dropdown_sort_widget_margin">20dp</dimen>
     <dimen name="dropdown_sort_widget_icon_size">30dp</dimen>
 
-    <dimen name="drop_icon_height">15dp</dimen>
-    <dimen name="drop_icon_width">15dp</dimen>
+    <dimen name="drop_icon_height">14dp</dimen>
+    <dimen name="drop_icon_width">14dp</dimen>
 </resources>