Remove support for the keygen tag

content/browser/resource_context_impl.cc

 // 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.
 
 #include "content/browser/resource_context_impl.h"
 
 #include <stdint.h>
 
 #include "base/base64.h"
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/rand_util.h"
 #include "content/browser/blob_storage/chrome_blob_storage_context.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/browser/loader/resource_request_info_impl.h"
 #include "content/browser/streams/stream_context.h"
 #include "content/browser/webui/url_data_manager_backend.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
-#include "net/base/keygen_handler.h"
 
 using base::UserDataAdapter;
 
 namespace content {
 
 // Key names on ResourceContext.
 const char kBlobStorageContextKeyName[] = "content_blob_storage_context";
 const char kStreamContextKeyName[] = "content_stream_context";
 const char kURLDataManagerBackendKeyName[] = "url_data_manager_backend";
 
 ResourceContext::ResourceContext()
     : media_device_id_salt_(CreateRandomMediaDeviceIDSalt()) {
 }
 
 ResourceContext::~ResourceContext() {
   if (ResourceDispatcherHostImpl::Get())
     ResourceDispatcherHostImpl::Get()->CancelRequestsForContext(this);
 }
 
 std::string ResourceContext::GetMediaDeviceIDSalt() {
   return media_device_id_salt_;
 }
 
-void ResourceContext::CreateKeygenHandler(
-    uint32_t key_size_in_bits,
-    const std::string& challenge_string,
-    const GURL& url,
-    const base::Callback<void(std::unique_ptr<net::KeygenHandler>)>& callback) {
-  callback.Run(base::MakeUnique<net::KeygenHandler>(key_size_in_bits,
-                                                    challenge_string, url));
-}
-
 // static
 std::string ResourceContext::CreateRandomMediaDeviceIDSalt() {
   std::string salt;
   base::Base64Encode(base::RandBytesAsString(16), &salt);
   DCHECK(!salt.empty());
   return salt;
 }
 
 ChromeBlobStorageContext* GetChromeBlobStorageContextForResourceContext(
     const ResourceContext* resource_context) {
@@ skipping 30 matching lines @@
 
   resource_context->SetUserData(
       kStreamContextKeyName,
       new UserDataAdapter<StreamContext>(
           StreamContext::GetFor(browser_context)));
 
   resource_context->DetachUserDataThread();
 }
 
 }  // namespace content