[BIC] Filter out REQUEST_INSTALL_PACKAGES perm

The installations via REQUEST_INSTALL_PACKAGES need users' approval by default.
So we don't count them as background ones.

Bug: 283130197
Test: BackgroundInstallControlServiceTest
Change-Id: Iacab4de788e53d6fb7ddaa1a3f51eb7b83c06742

services/core/java/com/android/server/pm/BackgroundInstallControlService.java

@@ -231,6 +231,14 @@ public class BackgroundInstallControlService extends SystemService {
             return;
         }
 
+        // the installers without INSTALL_PACKAGES perm can't perform
+        // the installation in background. So we can just filter out them.
+        if (mPermissionManager.checkPermission(installerPackageName,
+                android.Manifest.permission.INSTALL_PACKAGES,
+                userId) != PackageManager.PERMISSION_GRANTED) {
+            return;
+        }
+
         // convert up-time to current time.
         final long installTimestamp = System.currentTimeMillis()
                 - (SystemClock.uptimeMillis() - appInfo.createTimestamp);