Private Window flag to disable touch events in WallpaperService.

Change-Id: I18b46340f89cbea0b6daeb1efe9c31656f4e1a5d
diff --git a/core/java/android/view/WindowManager.java b/core/java/android/view/WindowManager.java
index 47ee52e..7b22c88 100644
--- a/core/java/android/view/WindowManager.java
+++ b/core/java/android/view/WindowManager.java
@@ -1116,6 +1116,13 @@
         public static final int PRIVATE_FLAG_KEYGUARD = 0x00000400;
 
         /**
+         * Flag that prevents the wallpaper behind the current window from receiving touch events.
+         *
+         * {@hide}
+         */
+        public static final int PRIVATE_FLAG_DISABLE_WALLPAPER_TOUCH_EVENTS = 0x00000800;
+
+        /**
          * Control flags that are private to the platform.
          * @hide
          */