Update SupportsUserData uses with unique_ptr.

content/browser/loader/resource_dispatcher_host_unittest.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 <stddef.h>
 
 #include <memory>
 #include <utility>
 #include <vector>
 
@@ skipping 733 matching lines @@
   // ResourceDispatcherHostDelegate implementation:
 
   void RequestBeginning(
       net::URLRequest* request,
       ResourceContext* resource_context,
       AppCacheService* appcache_service,
       ResourceType resource_type,
       std::vector<std::unique_ptr<ResourceThrottle>>* throttles) override {
     if (user_data_) {
       const void* key = user_data_.get();
-      request->SetUserData(key, user_data_.release());
+      request->SetUserData(key, std::move(user_data_));
     }
 
     if (flags_ != NONE) {
       throttles->push_back(base::MakeUnique<GenericResourceThrottle>(
           flags_, error_code_for_cancellation_));
       if (create_two_throttles_)
         throttles->push_back(base::MakeUnique<GenericResourceThrottle>(
             flags_, error_code_for_cancellation_));
     }
   }
@@ skipping 3163 matching lines @@
   return nullptr;
 }
 
 net::URLRequestJob* TestURLRequestJobFactory::MaybeInterceptResponse(
     net::URLRequest* request,
     net::NetworkDelegate* network_delegate) const {
   return nullptr;
 }
 
 }  // namespace content