gmscompat: add support for granting any permission to GmsCore on dev builds

Author: muhomorr

services/core/java/com/android/server/pm/ext/GmsCoreHooks.java

@@ -2,6 +2,7 @@
 
 import android.Manifest;
 import android.content.pm.ServiceInfo;
+import android.os.SystemProperties;
 import android.service.credentials.CredentialProviderService;
 
 import com.android.internal.gmscompat.GmcMediaProjectionService;
@@ -16,7 +17,20 @@
 import java.util.Collections;
 import java.util.List;
 
-class GmsCoreHooks {
+class GmsCoreHooks extends PackageHooks {
+
+    @Override
+    public int overridePermissionState(String permission, int userId) {
+        if (android.os.Flags.isDevBuild()) {
+            if (SystemProperties.getBoolean("sys.gmscore_grant." + permission, false)) {
+                return PERMISSION_OVERRIDE_GRANT;
+            }
+            if (SystemProperties.getBoolean("sys.gmscore_revoke." + permission, false)) {
+                return PERMISSION_OVERRIDE_REVOKE;
+            }
+        }
+        return NO_PERMISSION_OVERRIDE;
+    }
 
     static class ParsingHooks extends GmsCompatPkgParsingHooks {
 

services/core/java/com/android/server/pm/ext/PackageHooksRegistry.java

@@ -30,6 +30,7 @@ public static PackageHooks getHooks(int packageId) {
             case PackageId.ANDROID_AUTO -> new AndroidAutoHooks();
             case PackageId.PIXEL_CAMERA_SERVICES -> new PixelCameraServicesHooks();
             case PackageId.PIXEL_HEALTH -> new PixelHealthHooks();
+            case PackageId.GMS_CORE -> new GmsCoreHooks();
             default -> PackageHooks.DEFAULT;
         };
     }