Cleanup unreachable cert adding code

content/public/browser/content_browser_client.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 #define CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 460 matching lines @@
 
   // Selects a SSL client certificate and returns it to the |delegate|. Note:
   // |delegate| may be called synchronously or asynchronously.
   //
   // TODO(davidben): Move this hook to WebContentsDelegate.
   virtual void SelectClientCertificate(
       WebContents* web_contents,
       net::SSLCertRequestInfo* cert_request_info,
       std::unique_ptr<ClientCertificateDelegate> delegate);
 
-  // Adds a new installable certificate or private key.
-  // Typically used to install an X.509 user certificate.
-  // Note that it's up to the embedder to verify that the data is
-  // well-formed. |cert_data| will be nullptr if |cert_size| is 0.
-  virtual void AddCertificate(net::CertificateMimeType cert_type,
-                              const void* cert_data,
-                              size_t cert_size,
-                              int render_process_id,
-                              int render_frame_id) {}
-
   // Returns a class to get notifications about media event. The embedder can
   // return nullptr if they're not interested.
   virtual MediaObserver* GetMediaObserver();
 
   // Returns the platform notification service, capable of displaying Web
   // Notifications to the user. The embedder can return a nullptr if they don't
   // support this functionality. May be called from any thread.
   virtual PlatformNotificationService* GetPlatformNotificationService();
 
   // Returns true if the given page is allowed to open a window of the given
@@ skipping 283 matching lines @@
   // Returns whether the Win32k lockdown process mitigation should be applied to
   // a process hosting a plugin with the specified |mime_type|.
   virtual bool IsWin32kLockdownEnabledForMimeType(
       const std::string& mime_type) const;
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_CONTENT_BROWSER_CLIENT_H_