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### Preflight Checklist
<!-- Please ensure you've completed the following steps by replacing [ ] with [x]-->

* [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 --> 5.0.3
* **Operating System:** 
  * <!-- (Platform and Version) e.g. macOS 10.13.6 / Windows 10 (1803) / Ubuntu 18.04 x64 --> macOS 10.14
* **Last Known Working Electron version:** 
  * <!-- (if applicable) e.g. 3.1.0 --> n/a

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

`app.moveToApplicationsFolder` should throw when it fails, as the docs say.

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

It doesn't throw, in fact it even returns `true`.

### To Reproduce

- Have Foo v1 located in `/Applications/Foo.app`
- Open it
- Have Foo v2, still named `Foo.app`, located somewhere else
- Open it
- Use `app.moveToApplicationsFolder`.
- Instead of moving the app the currently open Foo v1 window will be focused, and `app.moveToApplicationsFolder` returns `true` instead of throwing.

shell/browser/api/atom_api_app.cc
args->ThrowError("Must pass valid certificate object.");
    return;
  }
  std::string data;
  if (!cert_data.Get("data", &data))
    return;
  auto certs = net::X509Certificate::CreateCertificateListFromBytes(
      data.c_str(), data.length(), net::X509Certificate::FORMAT_AUTO);
  if (!certs.empty()) {
    scoped_refptr<net::X509Certificate> cert(certs[0].get());
    for (size_t i = 0; i < identities->size(); ++i) {
      if (cert->EqualsExcludingChain((*identities)[i]->certificate())) {
        net::ClientCertIdentity::SelfOwningAcquirePrivateKey(
            std::move((*identities)[i]),
            base::BindRepeating(&GotPrivateKey, delegate, std::move(cert)));
        break;
      }
    }
  }
}
void PassLoginInformation(scoped_refptr<LoginHandler> login_handler,
                          mate::Arguments* args) {
  base::string16 username, password;
  if (args->GetNext(&username) && args->GetNext(&password))
    login_handler->Login(username, password);
  else
    login_handler->CancelAuth();
}
#if defined(USE_NSS_CERTS)
int ImportIntoCertStore(CertificateManagerModel* model,