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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/ui/inspectable_web_contents.cc
CloseDevTools();
}
std::unique_ptr<content::ColorChooser> InspectableWebContents::OpenColorChooser(
    content::WebContents* source,
    SkColor color,
    const std::vector<blink::mojom::ColorSuggestionPtr>& suggestions) {
  auto* delegate = web_contents_->GetDelegate();
  if (delegate)
    return delegate->OpenColorChooser(source, color, suggestions);
  return nullptr;
}
void InspectableWebContents::RunFileChooser(
    content::RenderFrameHost* render_frame_host,
    scoped_refptr<content::FileSelectListener> listener,
    const blink::mojom::FileChooserParams& params) {
  auto* delegate = web_contents_->GetDelegate();
  if (delegate)
    delegate->RunFileChooser(render_frame_host, std::move(listener), params);
}
void InspectableWebContents::EnumerateDirectory(
    content::WebContents* source,
    scoped_refptr<content::FileSelectListener> listener,
    const base::FilePath& path) {
  auto* delegate = web_contents_->GetDelegate();
  if (delegate)
    delegate->EnumerateDirectory(source, std::move(listener), path);
}
void InspectableWebContents::OnWebContentsFocused(