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### Issue Details

* **Electron Version:**
  * 7.0.0-beta.3
* **Operating System:**
  * macOS 10.14.5
* **Last Known Working Electron version:**
  * 6.0.2

### Expected Behavior
Show file chooser dialog when clicking input type="file" after canceled the dialog.

### Actual Behavior
Can't show file chooser dialog when clicking input type="file" after canceled the dialog.

### To Reproduce

1. Clone and Install source code.
```sh
$ git clone https://github.com/agata/electron-quick-start.git -b bug-for-file-chooser-after-canceled
$ npm install
$ npm start || electron .
```
2. Click <input type="file"> -> Show file chooser dialog.
3. Click cancel button of the dialog -> Close the dialog
4. Click <input type="file"> again -> Can't show file chooser dialog.

### Screenshots
![bug-for-file-chooser-after-canceled](https://user-images.githubusercontent.com/40473/63176157-60916900-c080-11e9-8715-f263319f0e68.gif)

### Additional Information
WebView has same problem.
shell/browser/web_dialog_helper.cc
: window_(window), offscreen_(offscreen), weak_factory_(this) {}
WebDialogHelper::~WebDialogHelper() {}
void WebDialogHelper::RunFileChooser(
    content::RenderFrameHost* render_frame_host,
    std::unique_ptr<content::FileSelectListener> listener,
    const blink::mojom::FileChooserParams& params) {
  file_dialog::DialogSettings settings;
  settings.force_detached = offscreen_;
  settings.filters = GetFileTypesFromAcceptType(params.accept_types);
  settings.parent_window = window_;
  settings.title = base::UTF16ToUTF8(params.title);
  auto file_select_helper = base::MakeRefCounted<FileSelectHelper>(
      render_frame_host, std::move(listener), params.mode);
  if (params.mode == FileChooserParams::Mode::kSave) {
    settings.default_path = params.default_file_name;
    file_select_helper->ShowSaveDialog(settings);
  } else {
    int flags = file_dialog::OPEN_DIALOG_CREATE_DIRECTORY;
    switch (params.mode) {
      case FileChooserParams::Mode::kOpenMultiple:
        flags |= file_dialog::OPEN_DIALOG_MULTI_SELECTIONS;
        FALLTHROUGH;
      case FileChooserParams::Mode::kOpen:
        flags |= file_dialog::OPEN_DIALOG_OPEN_FILE;
        flags |= file_dialog::OPEN_DIALOG_TREAT_PACKAGE_APP_AS_DIRECTORY;
        break;
      case FileChooserParams::Mode::kUploadFolder:
        flags |= file_dialog::OPEN_DIALOG_OPEN_DIRECTORY;
        break;