Merge "FakePermissionEnforcer: provide a revokeAll method" am: b46adf6c75

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2578470

Change-Id: Ia262f1063a987689bac88ad55887a0b55d83365d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

tests/utils/testutils/java/android/os/test/FakePermissionEnforcer.java

@@ -47,6 +47,10 @@ public class FakePermissionEnforcer extends PermissionEnforcer {
         mGranted.remove(permission);
     }
 
+    public void revokeAll() {
+        mGranted.clear();
+    }
+
     private boolean granted(String permission) {
         return mGranted.contains(permission);
     }