### Preflight Checklist

- [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](https://www.github.com/electron/electron/issues) for a feature request that matches the one I want to file, without success.

### Electron Version

12.0.5

### What operating system are you using?

Ubuntu

### Operating System Version

Ubuntu 21.04 x86_64 5.11.0-16-generic

### What arch are you using?

x64

### Last Known Working Electron version

_No response_

### Expected Behavior

All clicking inside the developer tool works well and not being interrupted by dragging the electron app.

### Actual Behavior

When I click the `option` and `close` tool inside the developer tool, it drags the electron app.

https://user-images.githubusercontent.com/61906684/118137437-666fd600-b42f-11eb-9443-ea1ebad1d0ec.mp4



### Testcase Gist URL

_No response_

### Additional Information

This bug only occurs if the dock position is on the left.
shell/browser/api/electron_api_browser_window.cc
if (options.Get("webContents", &value)) {
    web_preferences.SetHidden("webContents", value);
  }
  
  gin::Handle<WebContentsView> web_contents_view =
      WebContentsView::Create(isolate, web_preferences);
  DCHECK(web_contents_view.get());
  
  gin::Handle<WebContents> web_contents =
      web_contents_view->GetWebContents(isolate);
  web_contents_.Reset(isolate, web_contents.ToV8());
  api_web_contents_ = web_contents->GetWeakPtr();
  api_web_contents_->AddObserver(this);
  Observe(api_web_contents_->web_contents());
  
  web_contents->SetOwnerWindow(window());
  auto* host = web_contents->web_contents()->GetRenderViewHost();
  if (host)
    host->GetWidget()->AddInputEventObserver(this);
  InitWithArgs(args);
  
  SetContentView(gin::CreateHandle<View>(isolate, web_contents_view.get()));
#if defined(OS_MAC)
  OverrideNSWindowContentView(
      web_contents->inspectable_web_contents()->GetView());
#endif
  
  window()->InitFromOptions(options);
}
BrowserWindow::~BrowserWindow() {