Cleanup pma files

app/src/main/java/eu/faircode/email/WorkerCleanup.java

@@ -167,6 +167,18 @@ public class WorkerCleanup extends Worker {
                             }
                     }
                 }
+
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                    Log.i("Checking for pma files");
+                    File pma = new File(context.getDataDir(), "app_webview/BrowserMetrics");
+                    File[] files = pma.listFiles();
+                    if (files != null)
+                        for (File file : files)
+                            if (file.getName().endsWith(".pma")) {
+                                Log.i("Deleting " + file);
+                                file.delete();
+                            }
+                }
             }
 
             long now = new Date().getTime();