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### Issue Details

* **Electron Version:**
  * <!-- (output of `node_modules/.bin/electron --version`) e.g. 4.0.3 -->v10.1.1
* **Operating System:**
  * <!-- (Platform and Version) e.g. macOS 10.13.6 / Windows 10 (1803) / Ubuntu 18.04 x64 -->macOS 10.15.6
* **Last Known Working Electron version:**
  * <!-- (if applicable) e.g. 3.1.0 -->

### Expected Behavior
<!-- A clear and concise description of what you expected to happen. -->consecutive exit from HTML fullscreen and enter native fullscreen do not create unclickable and indestructible fantom window image.

### Actual Behavior
<!-- A clear and concise description of what actually happened. -->consecutive exit from HTML fullscreen and enter native fullscreen create unclickable and indestructible fantom window image.

### To Reproduce
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Your best chance of getting this bug looked at quickly is to provide an example.
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Modified electron quick-start project:

[kirille/electron-fullscreen-fantom-issue](https://github.com/kirille/electron-fullscreen-fantom-issue)

on start, opens app in html-fullscreen, on click on Do Bug button, exit html-fullscreen, wait for exit, enter native fullscreen.

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$ git clone $YOUR_URL -b $BRANCH
$ npm install
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### Screenshots
<!-- If applicable, add screenshots to help explain your problem. -->
<img width="1143" alt="Screenshot 2020-09-11 at 18 19 32" src="https://user-images.githubusercontent.com/6457945/92944398-97d97180-f45c-11ea-973f-58cf68c9dd42.png">

### Additional Information
<!-- Add any other context about the problem here. -->

shell/browser/native_window.cc
return widget();
}
std::u16string NativeWindow::GetAccessibleWindowTitle() const {
  if (accessible_title_.empty()) {
    return views::WidgetDelegate::GetAccessibleWindowTitle();
  }
  return accessible_title_;
}
void NativeWindow::SetAccessibleTitle(const std::string& title) {
  accessible_title_ = base::UTF8ToUTF16(title);
}
std::string NativeWindow::GetAccessibleTitle() {
  return base::UTF16ToUTF8(accessible_title_);
}
int32_t NativeWindow::next_id_ = 0;
void NativeWindowRelay::CreateForWebContents(
    content::WebContents* web_contents,
    base::WeakPtr<NativeWindow> window) {
  DCHECK(web_contents);
  if (!web_contents->GetUserData(UserDataKey())) {
    web_contents->SetUserData(UserDataKey(),
                              base::WrapUnique(new NativeWindowRelay(window)));
  }
}
NativeWindowRelay::NativeWindowRelay(base::WeakPtr<NativeWindow> window)
    : native_window_(window) {}
NativeWindowRelay::~NativeWindowRelay() = default;
WEB_CONTENTS_USER_DATA_KEY_IMPL(NativeWindowRelay)
}