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* [ x] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
* [ x] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
* [ x] I have searched the issue tracker for an issue that matches the one I want to file, without success.

### Issue Details

* **Electron Version:**
  * <!-- (output of `node_modules/.bin/electron --version`) e.g. 4.0.3 --> 10.1.1
* **Operating System:**
  * <!-- (Platform and Version) e.g. macOS 10.13.6 / Windows 10 (1803) / Ubuntu 18.04 x64 --> Windows 10
* **Last Known Working Electron version:**
  * <!-- (if applicable) e.g. 3.1.0 --> 6.1.10

### Expected Behavior
<!-- A clear and concise description of what you expected to happen. -->

The request to function normally except the certificate handler works as intended.

### Actual Behavior
<!-- A clear and concise description of what actually happened. -->

When sending concurrent requests at once, the net request throws an error with net::ERR_CERT_DATABASE_CHANGED.

### To Reproduce

session.setCertificateVerifyProc((r, cb) => cb(0));

// Send net requests as normal

Soon enough, the code will start producing the error shown above.

shell/browser/api/electron_api_session.cc
if (offset >= length) {
    isolate->ThrowException(v8::Exception::Error(gin::StringToV8(
        isolate, "Must pass an offset value less than length.")));
    return;
  }
  auto* download_manager =
      content::BrowserContext::GetDownloadManager(browser_context());
  download_manager->GetNextId(base::BindRepeating(
      &DownloadIdCallback, download_manager, path, url_chain, mime_type, offset,
      length, last_modified, etag, base::Time::FromDoubleT(start_time)));
}
void Session::SetPreloads(const std::vector<base::FilePath>& preloads) {
  auto* prefs = SessionPreferences::FromBrowserContext(browser_context());
  DCHECK(prefs);
  prefs->set_preloads(preloads);
}
std::vector<base::FilePath> Session::GetPreloads() const {
  auto* prefs = SessionPreferences::FromBrowserContext(browser_context());
  DCHECK(prefs);
  return prefs->preloads();
}
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
v8::Local<v8::Promise> Session::LoadExtension(
    const base::FilePath& extension_path) {
  v8::Isolate* isolate = JavascriptEnvironment::GetIsolate();
  gin_helper::Promise<const extensions::Extension*> promise(isolate);
  v8::Local<v8::Promise> handle = promise.GetHandle();
  if (!extension_path.IsAbsolute()) {
    promise.RejectWithErrorMessage(
        "The path to the extension in 'loadExtension' must be absolute");