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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
return false;
}
std::unique_ptr<content::ColorChooser> WebContents::OpenColorChooser(
    content::WebContents* ontents,
    SkColor color,
    const std::vector<blink::mojom::ColorSuggestionPtr>& suggestions) {
#if BUILDFLAG(ENABLE_COLOR_CHOOSER)
  return chrome::ShowColorChooser(ontents, color);
#else
  return nullptr;
#endif
}
std::unique_ptr<content::EyeDropper> WebContents::OpenEyeDropper(
    content::RenderFrameHost* frame,
    content::EyeDropperListener* listener) {
  return ShowEyeDropper(frame, listener);
}
void WebContents::RunFileChooser(
    content::RenderFrameHost* render_frame_host,
    scoped_refptr<content::FileSelectListener> listener,
    const blink::mojom::FileChooserParams& params) {
  if (!web_dialog_helper_)
    web_dialog_helper_ =
        std::make_unique<WebDialogHelper>(owner_window(), offscreen_);
  web_dialog_helper_->RunFileChooser(render_frame_host, std::move(listener),
                                     params);
}
void WebContents::EnumerateDirectory(