WidgetTray revamp work
- RecyclerView is rendering
- Animation is connected
- Drag and drop is now handled
- UI tweaking: background, margins, more to come.
- Flicker and preview not loading issue:
  fixed height for the horizontal scroll view.
- Shortcuts are added
- Widget Preview loading should support shortPress for drop
- UI tweaks left: overlay of arrow when there are more items to scroll
- icons are added in the section header
- Sorting of widget sections and widget horizontal list
- Adding all the padding constants to dimen.xml file
- RecyclerView should only support one view type

For items to be addressed in follow up patches OR CLs,
TODO is added to the comment.

b/19897708

Change-Id: Ibfc4da1696a23d20bada93db46e126706eb13cdc
diff --git a/res/layout-sw720dp/launcher.xml b/res/layout-sw720dp/launcher.xml
index a3d502c..8bd827a 100644
--- a/res/layout-sw720dp/launcher.xml
+++ b/res/layout-sw720dp/launcher.xml
@@ -66,8 +66,8 @@
             android:layout_height="wrap_content"
             android:layout_gravity="center_horizontal" />
 
-        <include layout="@layout/apps_customize_pane"
-            android:id="@+id/apps_customize_pane"
+        <include layout="@layout/widgets_view"
+            android:id="@+id/widget_view"
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             android:visibility="invisible" />