libcef/browser/alloy/alloy_content_browser_client.h [183:203]:
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  bool HandleExternalProtocol(
      const GURL& url,
      content::WebContents::Getter web_contents_getter,
      int child_id,
      int frame_tree_node_id,
      content::NavigationUIData* navigation_data,
      bool is_main_frame,
      network::mojom::WebSandboxFlags sandbox_flags,
      ui::PageTransition page_transition,
      bool has_user_gesture,
      const absl::optional<url::Origin>& initiating_origin,
      mojo::PendingRemote<network::mojom::URLLoaderFactory>* out_factory)
      override;
  bool HandleExternalProtocol(
      content::WebContents::Getter web_contents_getter,
      int frame_tree_node_id,
      content::NavigationUIData* navigation_data,
      network::mojom::WebSandboxFlags sandbox_flags,
      const network::ResourceRequest& request,
      mojo::PendingRemote<network::mojom::URLLoaderFactory>* out_factory)
      override;
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libcef/browser/chrome/chrome_content_browser_client_cef.h [59:79]:
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  bool HandleExternalProtocol(
      const GURL& url,
      content::WebContents::Getter web_contents_getter,
      int child_id,
      int frame_tree_node_id,
      content::NavigationUIData* navigation_data,
      bool is_main_frame,
      network::mojom::WebSandboxFlags sandbox_flags,
      ui::PageTransition page_transition,
      bool has_user_gesture,
      const absl::optional<url::Origin>& initiating_origin,
      mojo::PendingRemote<network::mojom::URLLoaderFactory>* out_factory)
      override;
  bool HandleExternalProtocol(
      content::WebContents::Getter web_contents_getter,
      int frame_tree_node_id,
      content::NavigationUIData* navigation_data,
      network::mojom::WebSandboxFlags sandbox_flags,
      const network::ResourceRequest& request,
      mojo::PendingRemote<network::mojom::URLLoaderFactory>* out_factory)
      override;
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