Forcing drag layer to be non accessible.
Setting a touch delegate makes a view to become accessible, if its set to auto.
This was making drayLayer accessible causing Talkback to speak out every item
on the draglayer when window focus changes

Bug: 30670702
Change-Id: Ifcba4c02b124166f9ca69c4244b9d20d7a7acaa5
diff --git a/res/layout-land/launcher.xml b/res/layout-land/launcher.xml
index 5c1fec7..2e64f6c 100644
--- a/res/layout-land/launcher.xml
+++ b/res/layout-land/launcher.xml
@@ -27,6 +27,7 @@
         android:id="@+id/drag_layer"
         android:clipChildren="false"
         android:clipToPadding="false"
+        android:importantForAccessibility="no"
         android:layout_width="match_parent"
         android:layout_height="match_parent">
 
diff --git a/res/layout-port/launcher.xml b/res/layout-port/launcher.xml
index b394fa8..d6e2802 100644
--- a/res/layout-port/launcher.xml
+++ b/res/layout-port/launcher.xml
@@ -27,6 +27,7 @@
     <com.android.launcher3.dragndrop.DragLayer
         android:id="@+id/drag_layer"
         android:clipChildren="false"
+        android:importantForAccessibility="no"
         android:clipToPadding="false"
         android:layout_width="match_parent"
         android:layout_height="match_parent">
diff --git a/res/layout-sw720dp/launcher.xml b/res/layout-sw720dp/launcher.xml
index b59c715..fef80de 100644
--- a/res/layout-sw720dp/launcher.xml
+++ b/res/layout-sw720dp/launcher.xml
@@ -27,6 +27,7 @@
         android:id="@+id/drag_layer"
         android:clipChildren="false"
         android:clipToPadding="false"
+        android:importantForAccessibility="no"
         android:layout_width="match_parent"
         android:layout_height="match_parent">