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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.h
bool IsCurrentlyAudible();
  void SetEmbedder(const WebContents* embedder);
  void SetDevToolsWebContents(const WebContents* devtools);
  v8::Local<v8::Value> GetNativeView(v8::Isolate* isolate) const;
  void IncrementCapturerCount(gin::Arguments* args);
  void DecrementCapturerCount(gin::Arguments* args);
  bool IsBeingCaptured();
  void HandleNewRenderFrame(content::RenderFrameHost* render_frame_host);
#if BUILDFLAG(ENABLE_PRINTING)
  void OnGetDefaultPrinter(base::Value print_settings,
                           printing::CompletionCallback print_callback,
                           std::u16string device_name,
                           bool silent,
                           std::u16string default_printer);
  void Print(gin::Arguments* args);
  
  v8::Local<v8::Promise> PrintToPDF(base::DictionaryValue settings);
#endif
  void SetNextChildWebPreferences(const gin_helper::Dictionary);
  
  void AddWorkSpace(gin::Arguments* args, const base::FilePath& path);
  void RemoveWorkSpace(gin::Arguments* args, const base::FilePath& path);
  
  void Undo();
  void Redo();
  void Cut();
  void Copy();
  void Paste();
  void PasteAndMatchStyle();
  void Delete();