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### Issue Details
Electron Version: All Version
Operating System: macOS 10.15.3
Last Known Working Electron version: Never

### Bug
The color picker in devtools does not work.
In devtools if you want to change the colors of the CSS code. When you click on a color a color picker is supposed to appear but it does not appear.

### Screenshots
<img width="1013" alt="Capture d’écran 2020-09-07 à 11 42 44" src="https://user-images.githubusercontent.com/70572698/92374841-988ea280-f100-11ea-96be-afc93f6dd645.png">

shell/browser/api/electron_api_web_contents.cc
const gin_helper::Dictionary& options) {
  WebContentsZoomController::CreateForWebContents(ontents);
  zoom_controller_ = WebContentsZoomController::FromWebContents(ontents);
  double zoom_factor;
  if (options.Get(options::kZoomFactor, &zoom_factor))
    zoom_controller_->SetDefaultZoomFactor(zoom_factor);
}
void WebContents::InitWithSessionAndOptions(
    v8::Isolate* isolate,
    std::unique_ptr<content::WebContents> owned_ontents,
    gin::Handle<api::Session> session,
    const gin_helper::Dictionary& options) {
  Observe(owned_ontents.get());
  
  
  
  InitWithWebContents(owned_ontents.release(), session->browser_context(),
                      IsGuest());
  inspectable_ontents_->GetView()->SetDelegate(this);
  auto* prefs = ontents()->GetMutableRendererPrefs();