Add ALLOW_SLIPPERY_TOUCHES to make StatusBarTouchController slippery am: 918776ee51

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/16510921

Change-Id: I974fcf457a96758f1002b64358c27edd54ab84de
diff --git a/quickstep/AndroidManifest.xml b/quickstep/AndroidManifest.xml
index e49f2ec..a6c3015 100644
--- a/quickstep/AndroidManifest.xml
+++ b/quickstep/AndroidManifest.xml
@@ -30,6 +30,7 @@
     <uses-permission android:name="android.permission.CONTROL_REMOTE_APP_TRANSITION_ANIMATIONS" />
     <uses-permission android:name="android.permission.VIBRATE" />
     <uses-permission android:name="android.permission.QUERY_ALL_PACKAGES" />
+    <uses-permission android:name="android.permission.ALLOW_SLIPPERY_TOUCHES"/>
     <uses-permission android:name="${packageName}.permission.HOTSEAT_EDU" />
 
     <application
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/StatusBarTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/StatusBarTouchController.java
index 16bd9ed..9e99979 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/StatusBarTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/StatusBarTouchController.java
@@ -19,6 +19,7 @@
 import static android.view.MotionEvent.ACTION_MOVE;
 import static android.view.MotionEvent.ACTION_UP;
 import static android.view.MotionEvent.ACTION_CANCEL;
+import static android.view.WindowManager.LayoutParams.FLAG_SLIPPERY;
 
 import android.graphics.PointF;
 import android.util.SparseArray;
@@ -48,17 +49,6 @@
 
     private static final String TAG = "StatusBarController";
 
-    /**
-     * Window flag: Enable touches to slide out of a window into neighboring
-     * windows in mid-gesture instead of being captured for the duration of
-     * the gesture.
-     *
-     * This flag changes the behavior of touch focus for this window only.
-     * Touches can slide out of the window but they cannot necessarily slide
-     * back in (unless the other window with touch focus permits it).
-     */
-    private static final int FLAG_SLIPPERY = 0x20000000;
-
     private final Launcher mLauncher;
     private final SystemUiProxy mSystemUiProxy;
     private final float mTouchSlop;
@@ -142,6 +132,15 @@
         return true;
     }
 
+    /**
+     * FLAG_SLIPPERY enables touches to slide out of a window into neighboring
+     * windows in mid-gesture instead of being captured for the duration of
+     * the gesture.
+     *
+     * This flag changes the behavior of touch focus for this window only.
+     * Touches can slide out of the window but they cannot necessarily slide
+     * back in (unless the other window with touch focus permits it).
+     */
     private void setWindowSlippery(boolean enable) {
         Window w = mLauncher.getWindow();
         WindowManager.LayoutParams wlp = w.getAttributes();