Harden Chromium launch flags for headless HF container stability

start.sh

@@ -646,11 +646,15 @@ if [ "$BROWSER_SHOULD_ENABLE" = "true" ]; then
        "headless": true,
        "noSandbox": true,
        "extraArgs": [
+         "--headless=new",
          "--no-sandbox",
          "--disable-setuid-sandbox",
          "--no-zygote",
          "--disable-dev-shm-usage",
          "--disable-gpu",
+         "--remote-debugging-address=127.0.0.1",
+         "--disable-features=UseDBus,MediaRouter",
+         "--password-store=basic",
          "--no-first-run",
          "--disable-background-networking",
          "--disable-sync",