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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 is_new_browsing_instance,
      const GURL& opener_url,
      const std::string& frame_name,
      const GURL& target_url,
      const content::StoragePartitionId& partition_id,
      content::SessionStorageNamespace* session_storage_namespace) override;
  void WebContentsCreatedWithFullParams(
      content::WebContents* source_contents,
      int opener_render_process_id,
      int opener_render_frame_id,
      const content::mojom::CreateNewWindowParams& params,
      content::WebContents* new_contents) override;
  void AddNewContents(content::WebContents* source,
                      std::unique_ptr<content::WebContents> new_contents,
                      const GURL& target_url,
                      WindowOpenDisposition disposition,
                      const gfx::Rect& initial_rect,
                      bool user_gesture,
                      bool* was_blocked) override;
  content::WebContents* OpenURLFromTab(
      content::WebContents* source,
      const content::OpenURLParams& params) override;
  void BeforeUnloadFired(content::WebContents* tab,
                         bool proceed,
                         bool* proceed_to_fire_unload) override;
  void SetContentsBounds(content::WebContents* source,
                         const gfx::Rect& pos) override;
  void CloseContents(content::WebContents* source) override;
  void ActivateContents(content::WebContents* contents) override;
  void UpdateTargetURL(content::WebContents* source, const GURL& url) override;