Fixed a bug where the heads-up would not show when full screen

Bug: 20728541
Change-Id: I74bc74c4936b003a4c0c37b7c7da2d1fa138c077
diff --git a/core/java/android/view/WindowManager.java b/core/java/android/view/WindowManager.java
index e983910..2d230e1 100644
--- a/core/java/android/view/WindowManager.java
+++ b/core/java/android/view/WindowManager.java
@@ -20,7 +20,6 @@
 import android.app.Presentation;
 import android.content.Context;
 import android.content.pm.ActivityInfo;
-import android.graphics.Insets;
 import android.graphics.PixelFormat;
 import android.graphics.Rect;
 import android.os.IBinder;
@@ -1119,6 +1118,15 @@
         public static final int PRIVATE_FLAG_DISABLE_WALLPAPER_TOUCH_EVENTS = 0x00000800;
 
         /**
+         * Flag to force the status bar window to be visible all the time. If the bar is hidden when
+         * this flag is set it will be shown again and the bar will have a transparent background.
+         * This can only be set by {@link LayoutParams#TYPE_STATUS_BAR}.
+         *
+         * {@hide}
+         */
+        public static final int PRIVATE_FLAG_FORCE_STATUS_BAR_VISIBLE_TRANSPARENT = 0x00001000;
+
+        /**
          * Control flags that are private to the platform.
          * @hide
          */