Chaniging all-apps scrim

> Converting the scrim to View, to better avoid overdraw
> Overview and Spring loaded state have different scrim alpha
> When going from overview to all-apps, there is a color scrim drawn over the overview panel.
  The slef color is merged with this color to prevent overdraw, and the remaining screen is drawn
  with a cut-out round rect path

Bug: 79111591
Change-Id: I26801fde13dd6adb4b06110bbe8087e35cc31847
diff --git a/res/layout/launcher.xml b/res/layout/launcher.xml
index 6556adf..cd8a425 100644
--- a/res/layout/launcher.xml
+++ b/res/layout/launcher.xml
@@ -57,6 +57,9 @@
             android:id="@+id/drop_target_bar"
             layout="@layout/drop_target_bar" />
 
+        <include android:id="@+id/scrim_view"
+            layout="@layout/scrim_view" />
+
         <include
             android:id="@+id/apps_view"
             layout="@layout/all_apps"