Add Delegate for AtomBrowserClient

atom/browser/browser_observer.h

@@ -7,17 +7,6 @@
 
 #include <string>
 
-#include "base/memory/scoped_ptr.h"
-#include "content/public/browser/client_certificate_delegate.h"
-
-namespace content {
-class WebContents;
-}
-
-namespace net {
-class SSLCertRequestInfo;
-}
-
 namespace atom {
 
 class LoginHandler;
@@ -53,12 +42,6 @@ class BrowserObserver {
   virtual void OnWillFinishLaunching() {}
   virtual void OnFinishLaunching() {}
 
-  // The browser requires client certificate.
-  virtual void OnSelectCertificate(
-      content::WebContents* web_contents,
-      net::SSLCertRequestInfo* cert_request_info,
-      scoped_ptr<content::ClientCertificateDelegate> delegate) {}
-
   // The browser requests HTTP login.
   virtual void OnLogin(LoginHandler* login_handler) {}